Who is a Jew?
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"Who is a Jew?" (Hebrew: מיהו יהודי pronounced [ˈmihu jehuˈdi]) is a basic question about Jewish identity and considerations of Jewish self-identification. The question is based on ideas about Jewish personhood, which have cultural, ethnic religious, political, genealogical, and personal dimensions. Orthodox Judaism and Conservative Judaism follow the Halakha, deeming a person to be Jewish if their mother is Jewish, or they underwent a proper conversion. Reform Judaism and Reconstructionist Judaism, accept both matrilienal and patrilineal descent. Haymanot Judaism and Karaite Judaism follow patrilineal descent. 
Jewish identity is also commonly defined through ethnicity. Opinion polls have suggested that the majority of Jews see being Jewish as predominantly a matter of ancestry and culture, rather than religion.  Ashkenazi Jews, being the most common Jewish ethnic division, have been the subject of numerous genealogical studies and have been found to be a distinct, homogeneous ethnic group.
- 1 Traditional interpretation and variations
- 2 Tannaitic Judaism
- 3 Contemporary Judaism
- 4 Religious definitions
- 5 Ethnic definitions
- 6 Other non-religious definitions
- 7 Legal structure in Israel
- 8 Other definitions
- 9 Israelite identity loss claims
- 10 See also
- 11 Notes and references
- 12 External links
Traditional interpretation and variations
The definition of who is a Jew varies according to whether it is being considered by Jews on the basis of religious law and tradition or self-identification, or by non-Jews for other reasons, sometimes for prejudicial purposes. Because Jewish identity can include characteristics of an ethnicity, a religion, or peoplehood, the definition depends on either traditional or newer interpretations of Jewish law and custom.
Israel's Law of Return stipulates that a Jew is someone with a Jewish mother or someone who has converted to Judaism. The Israeli Chief Rabbinate requires documents proving the Jewishness of one’s mother, grandmother, great-grandmother and great-great-grandmother when applying for marriage. The Office of the Chief Rabbi (OCR) has underlined the basic principle that a child is not recognised by the OCR and other bodies as Jewish unless his or her mother is Jewish.
According to the simplest definition used by most Jews for self-identification, a person is a Jew by birth, or becomes one through religious conversion. However, there are differences in interpretations when it comes to non-Orthodox Jewish denominations in the application of this definition, including
- Should a person with only one Jewish parent be considered Jewish?
- Which conversion processes should be considered valid?
- Can one remain a Jew after converting to another religion?
- How does being unaware of having Jewish parents affect one's Jewish status?
- How is Jewish identity determined in different countries throughout the Jewish Diaspora?
- How is the claim to Israeli citizenship adjudicated in the context of the Basic Laws of Israel?
According to historian Shaye J. D. Cohen, in the Bible, the status of the offspring of mixed marriages was determined patrilineally. He brings two likely explanations for the change in Mishnaic times: first, the Mishnah may have been applying the same logic to mixed marriages as it had applied to other mixtures (kilayim). Thus, a mixed marriage is forbidden as is the union of a horse and a donkey, and in both unions the offspring are judged matrilineally. Second, the Tannaim may have been influenced by Roman law, which dictated that when a parent could not contract a legal marriage, offspring would follow the mother.
All Jewish religious movements agree that a person may be a Jew either by birth or through conversion. According to halakha, a Jew by birth must be born to a Jewish mother. Halakha states that the acceptance of the principles and practices of Judaism does not make a person a Jew. But, those born Jewish do not lose that status because they cease to be observant Jews, even if they adopt the practices of another religion.
Reform and Reconstructionist Judaism often accept a child as Jewish even if only the father is Jewish and if the child chooses to identify as Jewish. As the various denominations of Judaism differ on their conversion processes, conversions performed by more liberal denominations are not accepted by those that are less so.
Jewish by birth
According to halakha, to determine a person's Jewish status (Hebrew: yuhasin) one needs to consider the status of both parents. If both parents are Jewish, their child will also be considered Jewish, and the child takes the status of the father (e.g., as a kohen). If either parent is subject to a genealogical disability (e.g., is a mamzer) then the child is also subject to that disability. If one of the parents is not Jewish, the rule is that the child takes the status of the mother (Kiddushin 68b, Shulchan Aruch, EH 4:19). The ruling is derived from various sources including Deuteronomy 7:1–5, Leviticus 24:10, Ezra 10:2–3. Accordingly, if the mother is Jewish, so is her child, and if she is not Jewish, neither is her child considered Jewish. In Orthodox Judaism the child of a non-Jewish mother can be considered Jewish only by a process of conversion to Judaism. The child is also freed from any disabilities and special status to which the father may have been subject (e.g., being a mamzer or kohen) under Jewish law.
The Orthodox and Conservative branches of Judaism maintain that the halakhic rules (i.e. matrilineal descent) are valid and binding. Reform and Liberal Judaism do not accept the halakhic rules as binding, and most branches accept a child of one Jewish parent, whether father or mother, as Jewish if the parents raise the child as a Jew and foster a Jewish identity in the child, noting that "in the Bible the line always followed the father, including the cases of Joseph and Moses, who married into non-Israelite priestly families." (However, according to the oral tradition of Orthodox Judaism, the spouses of both Joseph and Moses converted to Judaism prior to marrying them.) The Reform movement's standard states that "for those beyond childhood claiming Jewish identity, other public acts or declarations may be added or substituted after consultation with their rabbi". Advocates of patrilineal descent point to Genesis 48:15–20 and Deuteronomy 10:15. This policy is commonly known as patrilineal descent, though "bilineal" would be more accurate.
In 1983, the Reform Central Conference of American Rabbis passed the Resolution on Patrilineal Descent, declaring that "the child of one Jewish parent is under the presumption of Jewish descent. This presumption of the status of the offspring of any mixed marriage is to be established through appropriate and timely public and formal acts of identification with the Jewish faith and people... Depending on circumstances, mitzvot leading toward a positive and exclusive Jewish identity will include entry into the covenant, acquisition of a Hebrew name, Torah study, Bar/Bat Mitzvah, and Kabbalat Torah (Confirmation). For those beyond childhood claiming Jewish identity, other public acts or declarations may be added or substituted after consultation with their rabbi." 
Rabbi Mark Washofsky summarizes the 1983 CCAR resolution and subsequent interpretations in Reform responsa literature as follows:
- "The resolution is advisory rather than halachic in the traditional sense. It does not establish a new definition of Jewish identity, for its preamble states expressly that it means to be operative only for Reform Jews in North America, not for all Jews everywhere."
- "Jewish descent may be from either parent....The Reform Movement presumes the child of one Jewish parent, either mother or father, as Jewish. In fact, the 1983 resolution is in one significant respect more stringent than the traditional definition of Jewish status. The child of a Jewish mother and gentile father, whom halachah regards as clearly Jewish, enjoys but a presumption of Jewish status that must be "established" by "appropriate and timely public and formal acts of identification."
- "Biology remains a crucial factor. In the determination of Jewish identity...the child of two gentile parents is, as before, definitely a non-Jew and must undergo a formal conversion in order to become a Jew."
- "Both descent and behavior are crucial in determining Jewish status under the resolution. The Jewish status of a child of an intermarriage cannot be determined "automatically" either by biology or behavior. Both elements—descent from one Jewish parent and the performance of mitzvot that lead to a "positive and exclusive Jewish identity -- must be present, and they must be present during childhood."
- "The resolution applies only to children raised exclusively as Jews....A child raised simultaneously in Judaism and another religious tradition does not develop a "positive and exclusive" Jewish identity; therefore the presumption of Jewish status is disproved, and the resolution does not apply to that child. He or she will require conversion prior to observing bar or bat mitzvah in the synagogue." 
Waiving the need for formal conversion for anyone with at least one Jewish parent who has made affirmative acts of Jewish identity was a departure from the traditional position requiring formal conversion to Judaism for children without a Jewish mother.
The CCAR's 1983 resolution has had a mixed reception in Reform Jewish communities outside of the United States. Most notably, the Israel Movement for Progressive Judaism has rejected patrilineal descent and requires formal conversion for anyone not born of a Jewish mother.
Karaite Judaism believes that Jewish identity can only be transmitted by patrilineal descent. They argue that only patrilineal descent can transmit Jewish identity on the grounds that all descent in the Torah went according to the male line, basing this idea "on the fact that, in the Bible, tribes are given male names and that biblical characters are always referenced by their fathers' names. However, a minority of modern Karaites believe that Jewish identity requires that both parents be Jewish, and not only the father.
The divergence of views has become an issue because Orthodox and Conservative communities do not recognize a person as Jewish if only their father is Jewish. For the person to be accepted as Jewish by an Orthodox or Conservative community (for example, on an occasion of their bar/bat mitzvah or marriage), they require a formal conversion (in accordance with halakhic standards). Orthodox Judaism has a predominant position in Israel. Although Orthodox and Conservative Judaism do not recognize Jewishness through patrilineal descent, "it should also be noted, however, that in the case of a child born to a Jewish father but to a non-Jewish mother, most Orthodox rabbis will relax the stringent demands normally made of would-be converts", and the Rabbinical Assembly of the Conservative movement "agreed that 'sincere Jews by choice' should be warmly welcomed into the community".
Converts to Judaism
All mainstream forms of Judaism today are open to sincere converts, with most subgroups accepting converts by the process accepted within the group. Not all conversions are recognised by all varieties of Judaism.
In Rabbinic Judaism, the laws of conversion are based on the classical sources of Jewish law, especially discussions in the Talmud, and the law as codified in the Shulkhan Arukh. This corpus of traditional Jewish law (halakha) is regarded as authoritative by the Orthodox and Conservative movements. The traditional halakhic requirements for conversion are instruction in the commandments, circumcision (if male), and immersion in an acceptable body of water before valid witnesses, and acceptance of the commandments before a rabbinical court. If a male is already circumcised, a drop of blood is drawn from the penis.
Orthodox authorities require that conversions be performed in accord with traditional Jewish law and recognise only those conversions in which a convert accepts and undertakes to observe Jewish law as interpreted by Orthodox rabbis. Because rabbis in the other movements do not require that converts make this commitment, Orthodox authorities do not generally accept as valid conversions performed outside the Orthodox community.
Conservative authorities likewise require that conversions be conducted according to traditional Jewish law. Conducting a conversion absent the traditional requirements of immersion in a ritual bath and circumcision for males is a violation of a Standard of the Rabbinical Assembly and grounds for expulsion. Conservative authorities generally recognize any conversion done in accord with the requirements of Jewish law, even if done outside the Conservative movement. Accordingly, Conservative rabbis may accept the validity of some conversions from other non-Orthodox movements.
The Union for Reform Judaism states that "people considering conversion are expected to study Jewish theology, rituals, history, culture and customs, and to begin incorporating Jewish practices into their lives. The length and format of the course of study will vary from rabbi to rabbi and community to community, though most now require a course in basic Judaism and individual study with a rabbi, as well as attendance at services and participation in home practice and synagogue life." Its Central Conference of American Rabbis recommends that three rabbis be present for the conversion ceremony. The Rabbinical Court of the Israel Movement for Progressive Judaism requires an average of a year of study to become conversant in Jewish life and tradition. Following this, converts are required to immerse in a ritual bath, be circumcised if male, and accept the commandments before the rabbinical court.
Although an infant conversion might be accepted in some circumstances (such as in the case of adopted children or children whose parents convert), children who convert would typically be asked if they want to remain Jewish after reaching religious adulthood – which is 12 years of age for a girl and 13 for a boy, as required by Jewish law.
Karaite Judaism does not accept Rabbinic Judaism. It has different requirements for conversion, and refrained from accepting any converts until recently. Traditionally non-proselytizing, on August 1, 2007, the Karaites reportedly converted their first new members in 500 years. At a ceremony in their Northern California synagogue, ten adults and four minors swore fealty to Judaism after completing a year of study. This conversion came 15 years after the Karaite Council of Sages reversed its centuries-old ban on accepting converts.
Syrian Jewish communities do not normally carry out conversions, particularly where the conversion is suspected of being for the sake of marriage. Nor do they accept such converts from other communities, or the children of mixed marriages or marriages involving such converts.
Jews who have practiced another religion
In general, Orthodox Judaism considers individuals born of Jewish mothers to be Jewish, even if they convert to or are raised in another religion. Reform Judaism views Jews who convert to or are raised in another religion as non-Jews. For example "...anyone who claims that Jesus is their savior is no longer a Jew..." [Contemporary American Reform Responsa, #68].
Historically, a Jew who has been declared to be a heretic (Hebrew: min, מין) or Christian (Hebrew: notzri, נוצרי, meaning "Nazarene") may have had a cherem (similar to excommunication) placed on him or her; but the practice of communal and religious exclusion does not affect their status of Jewish birth. Judaism also views as Jewish those who involuntarily convert from Judaism to another religion (Hebrew: anusim, אנוסים, meaning "forced ones"), and their matrilineal descendants are likewise considered to be Jewish.
Judaism has a category for those who are Jewish but who do not practice or who do not accept the tenets of Judaism, whether or not they have converted to another religion. The traditional view regarding these individuals, known as Meshumadim (Hebrew: משומדים), is that they are Jewish; however, there is much debate in the rabbinic literature regarding their status vis-a-vis the application of Jewish law and their participation in Jewish ritual, but not to their status as Jews.
A Jew who leaves Judaism is free to return to the religion at any time. In general, no formal ceremony or declaration is required to return to Jewish practices. All movements of Judaism welcome the return to Judaism of those who have left, or been raised in another religion. When returning to Judaism, these individuals would be expected to abandon their previous practices and adopt Jewish customs.
The same rules in principle apply to the matrilineal descendants of such persons, though some rabbinical authorities may require stricter proof of Jewish descent than others. Whether such persons are required to undergo a full formal conversion depends on the community and their individual circumstances. For example, a male who has had a brit milah, who has a general understanding of Judaism, but who has been raised in a secular home might not be required to undergo ritual conversion. However, a male who has not had a brit milah, a male or female who has converted to or been brought up in another religion, or an individual raised in a completely secular home without any Jewish education, in most communities, may be required to undergo a full ritual conversion. For full participation in the community (for example, to marry with the participation of a rabbi), they may be required to display sincerity, such as a declaration of commitment to Judaism.
Another example of the issues involved is the case of converts to Judaism who cease to practice Judaism (whether or not they still regard themselves as Jewish), do not accept or follow halakha, or now adhere to another religion. Technically, such a person remains Jewish, like all Jews, provided that the original conversion is valid. However, in some recent cases, Haredi rabbinical authorities, as well as the current Religious Zionist Israeli Chief Rabbinate, have taken the view that a given convert's lapse from Orthodox Jewish observance is evidence that he or she cannot, even at the time of the conversion, have had the full intention to observe the commandments, and that the conversion must therefore have been invalid.
According to the traditional Rabbinic view, which is maintained by all branches of Orthodox Judaism, Conservative Judaism and Reform Judaism today, only halakha can define who is or is not a Jew when a question of Jewish identity, lineage, or parentage arises about any person seeking to define themselves or claim that they are Jewish.
As a result, mere belief in the principles of Judaism does not make one a Jew. Similarly, non-adherence by a Jew to the 613 Mitzvot, or even formal conversion to another religion, does not make one lose one's Jewish status. Thus, the immediate descendants of all female Jews (even apostates) are still considered to be Jews, as are those of all their female descendants. Even those descendants who are not aware they are Jews, or practice a religion other than Judaism, are defined by this perspective as Jews, as long as they come from an unbroken female line of descent. As a corollary, the children of a Jewish father and a non-Jewish mother are not considered to be Jews by Halakha unless they formally convert according to Halakha, even if raised fully observant in the Mitzvot.
Those not born to a Jewish mother may become accepted as Jews by the Orthodox and Conservative communities through a formal process of conversion to Judaism in order to become "righteous converts" (Gerei Tzedek—Hebrew: גרי צדק). In addition, Halakha requires that the new convert commit himself to observance of its tenets; this is called Kabbalat Ol Mitzvot (Hebrew: קבלת עול מצוות), "Acceptance of the Yoke of the Commandments". Kabbalat mitzvot (Hebrew: קבלת מצוות) is used by Reform Judaism in accordance with reform responsa and Halakhah.[clarification needed]
Both Haredi Judaism and Modern Orthodox Judaism accept a similar set of rules regarding Jewish status based on classical rabbinic Judaism, including both matrilineal descent and requirements that conversions be performed by Orthodox rabbis and that converts promise to strictly observe elements of traditional Judaism such as Shabbat and Niddah. However, their application of these rules have been different, and the difference has been increasing in recent years. Modern Orthodox authorities have been more inclined to rule in favor of Jewish status and to accept non-Orthodox Jews' word in doubtful cases involving people claiming to be Jews, while Haredi authorities have in recent years tended to presume non-Jewish status and require more stringent rules and standards of evidence in order for Jewish status to be proven, and have tended to distrust the evidence of Jews who are not personally Orthodox. Haredi rabbis have tended to look at a convert's current personal observance and to regard deficiencies or lack of Orthodoxy in current observance as evidence that the convert never intended to validly convert. In addition, the contemporary situation is further complicated by the fact that some Haredi rabbis no longer regard some Modern Orthodox rabbis as reliable.
Unlike the denominations of Rabbinical Judaism, Karaite Judaism maintains that it is the responsibility of each Jew to study the Tanakh for themselves. The Talmud and Oral Law are not considered canonical, and rabbinical opinions are not considered authoritative either, but every interpretation is held up to the same scrutiny, regardless of its source. Karaite Judaism relies on the Tanakh to indicate that Jewishness is passed down through the paternal line, not the maternal line as is maintained by Orthodox Judaism (though a minority hold that both parents need to be Jewish). Karaite Jews are eligible for Aliyah under the Law of Return. The eligibility of converts to Judaism through the Karaite movement to make Aliyah under the Law of Return has not yet been addressed in Israeli courts.
Modern Progressive Jewish denominations have a conversion process based on their principles. In the US, an official Reform resolution in 1893 abolished circumcision as a requirement for converts, and Reform does not require converts to have tevilah, ritual immersion. A "prospective convert declares, orally and in writing, in the presence of a rabbi and no less than two lay leaders of the congregation and community, acceptance of the Jewish religion and the intention to live in accordance with its mitzvot".
The controversy in determining "who is a Jew" concerns four basic issues:
- A. Children born of just one Jewish parent – regardless of whether the father or mother is Jewish – can claim a Jewish identity. A child of only one Jewish parent who does not claim this identity has, in the eyes of the Reform movement, forfeited his/her Jewish identity. By contrast, the halakhic view is that any child born to a Jewish mother is Jewish, whether or not he/she is raised Jewish, or even whether the mother considers herself Jewish. As an example, the children of Madeleine Albright (who was raised Catholic and was unaware of her Jewish heritage) would all be Jewish according to halakha, since their mother's traceable female ancestors were all Jewish and all three of her children were female. However, this is not the belief of progressive Judaism, which views Jews who convert to or are raised in another religion as non-Jews.
- B. The requirement of brit milah has been relaxed, as has the requirement of ritual immersion. (While the Conservative movement permits conversion without circumcision in some cases, most Orthodox Jews do not, except in cases specifically exempted by the Talmud, such as one who has had three brothers die as a result of circumcision; Jewish children who are hemophiliacs are exempt from circumcision.)
Secondly, Orthodox Judaism asserts that non-Orthodox rabbis are not qualified to form a beit din. This has led to non-Orthodox conversions generally being unaccepted in Orthodox communities. Since Orthodox Judaism maintains the traditional standards for conversion – in which the commitment to observe halakha is required – non-Orthodox conversions are generally not accepted in Orthodox communities because the non-Orthodox movements perform conversions in which the new convert does not undertake to observe halakha as understood by Orthodox Judaism.
A third controversy concerns persons (whether born Jews or converts to Judaism) who have converted to another religion. The traditional view is such persons remain Jewish. Reform Judaism regards such people as apostates, and states regarding Messianic Jews: "'Messianic Jews' claim that they are Jews, but we must asked [sic] ourselves whether we identify them as Jews. We can not do so as they consider Jesus of Nazareth as the Messiah who has fulfilled the Messianic promises. In this way, they have clearly placed themselves within Christianity. They may be somewhat different from other Christians as they follow various Jewish rites and ceremonials, but that does not make them Jews." Regardless, such people do not count as Jewish for the purposes of the Israeli citizenship laws.
A fourth controversy stems from the manner in which the Chief Rabbinate of Israel has been handling marriage and conversion decisions in recent years. Conversions and marriages within Israel are legally controlled by the Orthodox Israeli Chief Rabbinate; therefore, a person not proven to be a Jew to the Rabbinate's satisfaction is not legally permitted to marry a Jew in Israel today. Although the Rabbinate has always refused to accept non-Orthodox conversions, until recent years it was more willing to accept the Jewish parentage of applicants based on personal testimony, and the validity of conversions based on the testimony of Orthodox Rabbis. However, in recent years the rabbinate, whose rabbis historically had a more Modern Orthodox orientation, has increasingly been filled by the more stringent Haredi camp. It has increasingly been inclined to presume that applicants are not Jewish until proven otherwise, and require more stringent standards of proof than in the past. It has implemented a policy of refusing to accept the testimony of non-Orthodox Jews in matters of Jewish status, on grounds that such testimony is not reliable. It also has been increasingly skeptical of the reliability of Orthodox rabbis ordained by institutions not subject to its accreditation, particularly in matters of conversion. Accordingly, non-Orthodox Jews born to Jewish parents, and some Jews converted by Orthodox rabbis, have been increasingly unable to prove their Jewishness to the Rabbinate's satisfaction, because they are unable to find an Orthodox rabbi who is both acceptable to the Rabbinate, and familiar with and willing to vouch for the Jewishness of their maternal lineage or the validity of their conversion.
There have been several attempts to convene representatives of the three major movements to formulate a practical solution to this issue. To date, these have failed, though all parties concede the importance of the issue is greater than any sense of rivalry among them.
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Ethnic Jew is a term generally used to describe a person of Jewish parentage and background who does not necessarily actively practice Judaism, but still identifies with Judaism or other Jews culturally or fraternally, or both. The term "ethnic Jew" does not specifically exclude practicing Jews, but they are usually simply referred to as "Jews" without the qualifying adjective "ethnic".[a]
The term can refer to people of diverse beliefs and backgrounds because genealogy largely defines who is "Jewish". "Ethnic Jew" is sometimes used to distinguish non-practicing from practicing (religious) Jews. Other terms include "non-observant Jew", "non-religious Jew", "non-practicing Jew", and "secular Jew".
The term sometimes can refer exclusively to Jews who, for whatever reasons, do not practice the religion of Judaism, or who are so casual in their connection to that religion as to be effectively not Jews in the religious sense of adherent to Judaism. Typically, ethnic Jews are cognizant of their Jewish background, and may feel strong cultural (even if not religious) ties to Jewish traditions and to the Jewish people or nation. Like people of any other ethnicity, non-religious ethnic Jews often assimilate into a surrounding non-Jewish culture, but, especially in areas where there is a strong local Jewish culture, they may remain largely part of that culture instead.
"Ethnic Jews" include atheists, agnostics, non-denominational deists, Jews with only casual connections to Jewish denominations or converts to other religions, such as Christianity, Buddhism, or Islam. Religious Jews of all denominations sometimes engage in outreach to non-religious ethnic Jews. In the case of some Hasidic denominations (e.g. Chabad-Lubavitch), this outreach extends to actively proselytizing more secular Jews.
The 2013 Pew Research study of American Jews found that 62% thought that being Jewish was mainly a matter of ancestry and culture, while 15% thought that it was mainly a matter of religion. Of those who stated themselves to be Jews by religion, 55% thought that being Jewish was mainly a matter of ancestry and culture, while two-thirds thought that it was not necessary to believe in God to be Jewish.
Israeli immigration law
Israeli immigration laws will accept an application for Israeli citizenship if there is proven documentation that any grandparent—not just the maternal grandmother—was Jewish. This does not mean that person is an "ethnic Jew", but Israeli immigration will accept that person because he or she has an ethnically Jewish connection, and because this same degree of connection was sufficient to be persecuted as a Jew by the Nazis.[b]
Historical European definitions
The traditional European definition of Jewishness (although it was not uniform across Europe) differs markedly from the definition used by the United States. In the former Soviet Union, "Jewish" was a nationality by law, as with other nationalities such as Russians, Ukrainians, Georgians and others. There were certain restrictions on their civil liberties in the early years of the Soviet Union.
The European definition is traditional in many respects, and reflects not only how the Europeans saw Jews, but also how Jews saw themselves. It has been argued[by whom?] that the Israeli Law of Return draws on external definitions of Jewishness (such as the Nazi and Soviet definitions), rather than traditional halakhic criteria.
The modern genealogical DNA test of ethnicity is certainly a non-religious definition of 'who is a Jew?' as increasing numbers of persons discover their biological and cultural origins outside of the traditional religious setting. The top two Jewish haplogroups for the priestly families, Haplogroup J-M267 and Haplogroup E-M215 (Y-DNA) have genetic origins in the vast Arabian Peninsula, Egypt, the Horn of Africa, and the Levant, which indicates a more complex cultural genesis and potential identity.
In the United States and Europe, because of intermarriage, the population of "half-Jews" is beginning to rival that of Jews with two Jewish parents. Self-identified "half-Jews" consider the term a familial category, which reflects multiple heritages and possible Jewish cultural or spiritual practices. Other similar terms that have been used include: "part-Jewish" and "partial-Jews". The term "Gershom", "Gershomi" or "Beta Gershom" has also been used as an alternative to "half-Jewish" and "part-Jewish" in connection with descendants of intermarriage, Gershom being the son of Moses and his Midianite wife Zipporah. The term typically has no religious meaning, as terms like Jewish Christian do, but rather describes ethnic Jewry.
Other non-religious definitions
The Society for Humanistic Judaism defines a Jew as "someone who identifies with the history, culture and fate of the Jewish people." In their view it is therefore possible for a non-religious individual to adopt Judaism and join a Humanistic Jewish community, and for the Society for Humanistic Judaism to adopt the person wanting to be part of the Humanistic Jewish family. As Israeli author Amos Oz puts it, "a Jew is anyone who chooses or is compelled to share a common fate with other Jews." Oz summed up his position more succinctly in a monologue published in Tikkun, saying "Who is a Jew? Everyone who is mad enough to call himself or herself a Jew is a Jew."
Legal structure in Israel
Israel has no single document called a constitution (the Basic Laws of Israel function as an uncodified constitution); however, the definition of "who is a Jew" has become an important issue in Israeli politics due to the involvement of religious parties in the Knesset.
As of 2010[update], anyone who immigrated to Israel after 1990 and wishes to marry or divorce via the Jewish tradition within the state limits must go through a "Judaism test" at an Orthodox Rabbinical court. In this test, a person would need to prove their claim to be Jewish to an investigator beyond a reasonable doubt. They would need to present original documentation of their matriline up to their great-grandmother (4 generations), or in the case of Ethiopian Jews, 7 generations back. In addition, they should provide government documents with nationality/religion shown as Jewish (e.g., birth/death certificates, marriage documents, etc.).
In the case of people whose original documents have been lost or never existed, it may take a lot of work to prove their being Jewish. The court rulings are not final, and any clerk has the power to question them even 20 years later, changing one's citizenship status to "on hold", and putting them in jeopardy of deportation.
The two biggest communities suffering from this problem are:
- Immigrants from the former Soviet Union (FSU) – a study conducted between 2003 and 2005 showed that 83% of people from the FSU who started the Judaism test process successfully finished it. An estimated 10% left the process before completion. In a later study, in 2011, a 90% success rate was achieved in the FSU immigrant community. Many Jews in the former Soviet Union took steps to hide their Jewishness. Besides post-Soviet copies of documents are suspected by the tribunal after widespread falsification, and the archived originals are difficult to access for genealogists.
- Immigrants from the United States, where government documents generally do not show religion or Jewish ethnicity.
Law of Return
Following the birth of the modern State of Israel in 1948, the Law of Return was enacted to give any Jew the right to immigrate to Israel and become a citizen. However, due to an inability on the lawmakers to agree, the Law did not define who was a Jew, relying instead on the issue to resolve itself over time. As a result, the Law relied in form on the traditional halakhic definition. But, the absence of a definition of who is a Jew, for the purpose of the Law, has resulted in the divergent views of the various streams of Judaism competing for recognition.
Besides the generally accepted halakhic definition of who is a Jew, the Law extended the categories of person who are entitled to immigration and citizenship to the children and grandchildren of Jews, regardless of their present religious affiliation, and their spouses. Also, converts to Judaism whose conversion was performed outside of the State of Israel, regardless of who performed it, were entitled to immigration under the Law. Once again, issues arose as to whether a conversion performed outside of Israel was valid. The variation of the definition in the Law and the definition used by various branches of Judaism has resulted in practical difficulties for many people.
It has been estimated that in the past twenty years about 300,000 avowed non-Jews and even practicing Christians have entered Israel from the former Soviet Union on the basis of being a child or grandchild of a Jew or by being married to a Jew.
However, there was an exception in the case of a person who had formally converted to another religion derived from the Rufeisen Case in 1962. Such a person, no matter what their halakhic position, was not entitled to immigration under the Law. This created a divergence between political Zionist interpretation of Jewishness and that of halakha. In the 1970 Shalit case the Israeli Supreme Court ruled in favour of a family which sought to register children born in Israel from a Scottish mother as Jewish by nationality, but the 1972 amendment to the Population Registry Law prevented their third child being registered as Jewish.
Current Israeli definitions specifically exclude Jews who have openly and knowingly converted to or were raised in a faith other than Judaism, including Messianic Judaism. This definition is not the same as that in traditional Jewish law; in some respects it is deliberately wider, so as to include those non-Jewish relatives of Jews who may have been perceived to be Jewish, and thus faced antisemitism.
The Law of Return does not, of itself, define the Jewish status of a person; it only deals with those who have a right of immigration to Israel.
In the early 1950s, the Israeli Chief Rabbinate originally objected to the immigration of Karaite Jews to Israel, and unsuccessfully tried to obstruct it. In 2007 Rabbi David Chayim Chelouche, the chief rabbi of Netayana, was quoted in the Jerusalem Post as saying: "A Karaite is a Jew. We accept them as Jews and every one of them who wishes to come back [to mainstream Judaism] we accept back. There was once a question about whether Karaites needed to undergo a token circumcision in order to switch to rabbinic Judaism, but the rabbinate agrees that today that is not necessary."
Israeli laws governing marriage and divorce
In relation to marriage, divorce, and burial, which are under the jurisdiction of the Israeli Interior Ministry, the halakhic definition of who is a Jew is applied. When there is any doubt, the Israeli Chief Rabbinate generally determines the issue.
In terms of social relations, most secular Jews view their Jewish identity as a matter of culture, heritage, nationality, or ethnicity. Ancestral aspects can be explained by the many Jews who view themselves as atheist and are defined by matrilineal descent or a Cohen (Kohen) or Levi, which is connected by ancestry. The question of "who is a Jew" is a question that is under debate. Issues related to ancestral or ethnic Jews are dealt with by the Israeli Chief Rabbinate.
Orthodox halachic rules apply to converts who want to marry in Israel. Under these rules, a conversion to Judaism must strictly follow halachic standards to be recognised as valid. The rabbinate even scrutinizes Orthodox conversions, with some who have converted by orthodox authorities outside of Israel not being permitted to marry in Israel.
If one's ancestral line of Jewishness is in doubt, then a proper conversion would be required in order to be allowed to marry in the Orthodox community, or in Israel, where such rules govern all marriages.
Israeli definition of nationality
The Jewish status of a person in Israel is considered a matter of "nationality".
In the registering of "nationality" on Israeli Teudat Zehut ("identity card"), which is administered by the Ministry of the Interior, a person had to meet the halakhic definition to be registered as a "Jew". However, in a number of cases the Supreme Court of Israel has ordered the Interior Ministry to register Reform and Conservative converts as Jews. The right of people who convert in the Diaspora under Reform or Conservative auspices to make aliyah, or immigrate to Israel and claim citizenship as Jews, is detailed in Israeli law.
Until recently, Israeli identity cards had an indication of nationality, and the field was left empty for those who immigrated not solely on the basis of being Jewish (i.e. as a child, grandchild or spouse of a Jew only) to indicate that the person may not be a Jew. Many Israeli citizens who are not recognised by the Rabbinate as Jewish have been issued with Israeli identity cards that do not include their Hebrew calendar birth date.
Outside of Israel
|This section is incomplete. (November 2013)|
In 2010 the Labour Court of South Africa addressed the question of who is a Jew for the purposes of the Employment Equity Act.
The question has also arisen in the United Kingdom, where religious schools are allowed to select all, or a proportion of their intake based upon religion. A 2009 ruling, R(E) v Governing Body of JFS, determined that the definition of Jewish religion based upon descent constituted discrimination on ethnic grounds, and therefore contravened racial discrimination laws.
|This section is incomplete. (November 2013)|
There have been other attempts to determine Jewish identity beside the traditional Jewish approaches. These range from genetic population studies[c] to controversial evolutionary perspectives including those espoused by Kevin B. MacDonald and Yuri Slezkine. Historians, such as the late Kamal Salibi, have utilized etymology and geography to reconstruct the prehistoric origin of the Jewish people in the Arabian Peninsula.
Sociology and anthropology
As with any other ethnic identity, Jewish identity is, to some degree, a matter of either claiming that identity or being perceived by others (both inside and outside the ethnic group) as belonging to that group, or both. Returning again to the example of Madeleine Albright – during her Catholic childhood, her being in some sense Jewish was presumably irrelevant. It was only after she was nominated to be Secretary of State that she, and the public, discovered her Jewish ancestry.
Ido Abram states that there are five aspects to contemporary Jewish identity:
- Religion, culture, and tradition.
- The tie with Israel and Zionism.
- Dealings with antisemitism, including issues of persecution and survival.
- Personal history and life-experience.
- Relationship with non-Jewish culture and people.
The relative importance of these factors may vary enormously from place to place. For example, a typical Dutch Jew might describe his or her Jewish identity simply as "I was born Jewish," while a Jew in Romania, where levels of antisemitism are higher, might say, "I consider any form of denying as a proof of cowardice."[clarification needed]
During the time of the Spanish and Portuguese Inquisitions, conversion to Roman Catholicism did not result in total termination of the person's Jewish status. Legally, the converts were no longer regarded as Jews, and thus allowed to stay in the Iberian Peninsula. During the Inquisition in Spain and Portugal, however, many Jews were forced to convert, but thereafter were regarded by many people, though not in a legal form, as New Christians, distinguishing them as separate from the Old Christians of non-Jewish lineage. Since legal, political, religious and social pressure pushed many people to untrue conversions (public behaviour as Christians while retaining some Jewish beliefs and practices privately, a kind of crypto-Judaism),[d] they were still treated with suspicion, a stigma sometimes carried for several generations by their identifiable descendants. The limpieza de sangre ("Cleanliness of blood") required public officials or candidates for membership of many organizations to prove that they did not have Jewish or Muslim ancestry.
Jean-Paul Sartre, who was not Jewish, suggested in Anti-Semite and Jew (1948) that Jewish identity "is neither national nor international, neither religious nor ethnic, nor political: it is a quasi-historical community." While Jews as individuals may be in danger from the antisemite who sees only "Jews" and not "people", Sartre argues that the Jewish experience of antisemitism preserves—even creates—the sense of Jewish community. In his most extreme statement of this view he wrote, "It is the anti-Semite who creates the Jew." Conversely, that sense of specific Jewish community may be threatened by the democrat who sees only "the person" and not "the Jew".
Hannah Arendt repeatedly asserted a principle of claiming Jewish identity in the face of antisemitism. "If one is attacked as a Jew, one must defend oneself as a Jew. Not as a German, not as a world-citizen, not as an upholder of the Rights of Man, or whatever"; "A man attacked as a Jew cannot defend himself as an Englishman or a Frenchman. The world can only conclude from this that he is simply not defending himself at all."
Wade Clark Roof (1976), a sociologist at the University of California at Santa Barbara, proposed that social sectors in modern life, in which traditional symbols and rituals are meaningful, provide an alternative approach for explaining the social basis of religion in a secular order, in doing so, he turned to the local community as a sphere in modern society that still persists "as a complex system of friendship and kinship networks, formal and informal associations, as well as symbolic attachments, very much rooted in family life and ongoing socialization processes".
The question "who is a Jew?" is also sometimes of importance to non-Jews. It has had exceptional significance historically when considered by anti-Jewish groups for the purpose of targeting Jews for persecution or discrimination. The definition can impact on whether a person may have a certain job, live in certain locations, receive a free education, live or continue to live in the country, be imprisoned, or executed.
The question was of critical importance during the rule of the Nazi party in Germany, which persecuted the Jews and defined them for the government's purposes by the Nuremberg Laws. In 2009, a United Kingdom court considered whether the question was a racial issue, in the case R(E) v Governing Body of JFS (2009).
The Nazi regime instituted laws discriminating against Jews, declared a race by the Nazis, and thus needed a working definition of who is a Jew as to its law-defined race system. These definitions almost completely categorised persons through the religions followed by each individual's ancestors, according to membership registries. Thus, personal faith or individual observance, as well as the religious definitions of Judaism as given by the Halacha, were mostly ignored.
In Germany itself, the Ahnenpass and Nuremberg Laws classified people as being of the Jewish race if they descended from three or four grandparents enrolled in Jewish congregations. A person with one or two grandparents enrolled in a Jewish congregation could be classified as Mischling, a crossbreed, of "mixed blood", if they were not a member of a Jewish congregation at the time the Nuremberg Laws were enacted. Only people with at least two of their grandparents of "German blood" could be German Reich's citizens, other Germans dropped into the new second class group of citizens, the so-called state citizens. If a person, with grandparents of the same religious combination, was enrolled as a member of a Jewish congregation in 1935 or would join later, they switched from the discriminatory class of Mischlinge into that of Geltungsjude, "Jew by legal validity", despite of not fulfilling the no less law-defined discriminating criterion of descending from three or four Jewish grandparents. Whereas every Mischling could anytime drop into the class of Geltungsjude by joining a Jewish congregation, the Nuremberg Laws provided for the unchanged classification of any Geltungsjude, regardless if she or he tried to evade harm by seceding from the Jewish congregation after 1935, considering such secessions as being of no effect as to the discrimination. Let alone people with three or four Jewish grandparents who themselves could never alter their law-defined racial categorisation as Jews. Any Mischling with two Jewish grandparents, colloquially called a half-Jew, marrying after 1935 anybody classified as Jew would drop into the discriminatory class of Geltungsjude. Mischlinge with one Jewish grandparent were usually forbidden to marry anybody with any Jewish grandparent.
One could not become a non-Jew in the eyes of the Nazi government by seceding from one's Jewish congregation, becoming non-practicing, marrying outside the religion, or converting to Christianity. In 1935 the Nuremberg Laws forbade new marriages of people classified as Jews with people of other classifications.[e] Earlier contracted marriages between spouses of different classifications (so-called mixed marriages; Mischehe) provided the Jewish-classified spouse with an uncertain protection from some discriminations and atrocities.
There were very few Karaites in Europe during the Nazi era; most lived in the region of Turkey, Greece, and the Crimea. Karaites were not considered Jewish for the purpose of the Holocaust extermination policy; according to SS Obergruppenführer Gottlob Berger, writing on November 24, 1944, discrimination against the Karaites had been prohibited due to their proximity to the Crimean Tatars, to whom Berger views the Karaites as being related. Nazis still retained hostility towards the Karaites, on grounds of their religion; and there were a number of small scale massacres of Karaites.
The Vichy régime in southern France defined a Jew as an individual with three Jewish grandparents or two grandparents if his/her spouse was Jewish. Richard Weisberg points out that this was a potentially broader classification than the one used in Occupied France, for example, a Mischling could not be classified a Jew under the Nazi dictate, by her/his spouse's classification if the marriage was contracted before the imposition of anti-Semitic marriage laws there, but would be deemed one under the Vichy act if he/she had married a Jew, regardless when.
Israelite identity loss claims
There are various groups besides Jews that have claimed descent from the biblical Israelites. The question nowadays arises in relation to Israel's Law of Return, with various groups seeking to migrate there. Some claims have been accepted, some are under consideration, while others have been rejected by Israel's rabbinate.
Cochin Jews (Indian Jews)
Some sources say that the earliest Jews of Cochin, India were those who settled in the Malabar Coast during the times of King Solomon of Israel, and after the Kingdom of Israel split into two. There is historical documentation of the Jews being in Cochin after the fall of the Second Temple, from around the first century CE. Later additions were a smaller immigration of Sephardic Jews from Europe in the sixteenth century after the expulsion from Spain, and Baghdadi Jews, Arabic-speaking Jews who arrived in the late eighteenth century, at the beginning of the British colonial era. Following the independence of India and the establishment of Israel, most Cochin Jews emigrated to Israel in the mid-1950s. Some have gone on to North America or Britain.
The Bene Israel in India claim to be descended from Jews who escaped persecution in Galilee in the 2nd century BCE. The Bene Israel resemble the non-Jewish Marathi people in appearance and customs, which indicates some intermarriage between Jews and Indians. The Bene Israel, however, maintained the practices of Jewish dietary laws, male circumcision and observation of the Sabbath as a day of rest. From the late eighteenth century, other Jewish communities instructed them in normative Judaism.
Initially the Orthodox rabbinate in Israel said that the Bene Israel would have to undergo conversion in order to marry other Jews, as matrilineal descent could not be proven. In 1964 the Israeli Rabbinate declared that the Bene Israel are "full Jews in every respect".
The Bene Israel claim a lineage to the Kohanim, the Israelite priestly class, which claims descent from Aaron, the brother of Moses. In 2002, DNA testing revealed that the Bene Israel shared some genetic markers of the Kohanim. These are not exclusive to the Kohanim, but appear among them at a higher frequency. These are also shared with some non-Jewish Semitic peoples.
Many of the Bene Israel emigrated from India to Israel, where around 6,000 Jews of this group reside. About 5,000 remain in India. They maintain 65 synagogues in Israel.
The Beta Israel or Falasha is a group formerly living in Ethiopia who have a tradition of descent from the lost tribe of Dan. They have a long history of practicing such Jewish traditions as kashrut, Sabbath and Passover, and had Jewish texts. In 1975, their claim of Jewishness was accepted by the Chief Rabbinate of Israel and the Israeli government. The government assisted them in emigrating en masse to Israel during the 1980s and 1990s as Jews under the Law of Return, when Ethiopia was undergoing civil war. Some who claim to be Beta Israel still live in Ethiopia.
The Bnei Menashe is a group in India claiming to be descendants of the half-tribe of Menashe. Members who have studied Hebrew and who observe the Sabbath and other Jewish laws in 2005 received the support of the Sephardic Chief Rabbi of Israel to arrange formal conversion to Judaism. Some have converted and immigrated to Israel under the Law of Return.
The Kaifeng Jews
The Kaifeng Jews, a Mandarin-speaking group from Henan Province, China, experienced first contact with Europeans in 1605 via the religious scholar Matteo Ricci. Modern researchers believe these Jews were descended from Persian merchants who settled in China during the early Song Dynasty. They prospered during the Ming Dynasty as Confucian civil servants, soldiers, and merchants, but they quickly assimilated and lost much of their Jewish heritage. By the beginning of the 19th century, the last rabbi with knowledge of Hebrew died, leaving no successor. The community had become extinct religiously by the late Qing Dynasty due to anti-foreign persecutions brought on by the Taiping Rebellion and Boxer Rebellion. There are a small number of Chinese people today who consider themselves to be descendants of these Jews.
Despite their isolation from the rest of the Jewish diaspora, the Jews of Kaifeng preserved Jewish traditions and customs for many centuries. In the 17th century, assimilation began to erode these traditions. The rate of intermarriage between Jews and other ethnic groups, such as the Han Chinese, and the Hui and Manchu minorities in China, increased. The destruction of the synagogue in the 1860s led to the community's demise. However, J.L. Liebermann, the first Western Jew to visit Kaifeng in 1867, noted that "they still had a burial ground of their own". S.M. Perlmann, the Shanghai businessman and scholar, wrote in 1912 that "they bury their dead in coffins, but of a different shape than those of the Chinese are made, and do not attire the dead in secular clothes as the Chinese do, but in linen". To date, there is only one scholar, Zhou Xu, who doubts the Kaifeng community's Jewishness and claims them to have been a western construct.
Today, 600-1,000 residents of Kaifeng trace their lineage to this community. After contact with Jewish tourists, the Jews of Kaifeng have reconnected to mainstream Jewry. With the help of Jewish organizations, some members of the community have emigrated to Israel. In 2009, Chinese Jews from Kaifeng arrived in Israel as immigrants.
The Lemba, a Bantu-speaking group of people from southern Africa, primarily Zimbabwe and South Africa, consider themselves of Jewish descent, although most practice Christianity or Islam. They emphasize eating only meats slaughtered by special ritual. They have endogamous marriage practices. If a man wants to marry a non-Lemba woman, she must adopt all the Lemba practices and traditions, including keeping meat and dairy foods separate. No male non-Lemba are accepted into the group, even by conversion.
The Lemba follow a patrilineal tradition.  traditionally known as the one to have led the men to south Africa from Yemen after they left Israel.  which is consistent with the tribe's origin story of Jewish men coming to Africa.
New Mexico's Crypto-Jews
A small Hispano group of Sephardic Jews in northern New Mexico may be one of the oldest groups of practicing Jews in North America, dating back to the early Spanish settlers of Jewish descent who had been forcibly converted to Catholicism as Conversos or New Christians, or both after 1492. Some families of Conversos began to settle in Mexico City in the 1530s and 1540s. Some converted back to Judaism; others maintained some Jewish beliefs and practices in secret. After the Spanish Inquisition came to the New World in 1571, the conversos were threatened with death if it was found they were practicing Judaism.
In 1598 the first expedition was made to New Mexico, and included conversos. After that, other conversos fled to the northwestern frontier of the Spanish Empire, now the American Southwest, to evade the scrutiny and threat of discovery in the more monitored settlements. Outwardly Catholic, these forced converts maintained Jewish practices and customs for generations in secret, hence their name, "Crypto-Jews". They have been the subject of recent academic study. Some of New Mexico's Crypto-Jews have begun to return to normative Judaism in recent years, through study and ritual conversion. Others feel enlarged by learning this part of their history, but continue as practicing Catholics.
A genetic study of men in the early 2000s showed that many Hispanos of the American Southwest are descended from Anusim (Sephardic Jews who were forcibly converted to Roman Catholicism). Only Catholic Spanish were allowed to go to the New World with the exploration and colonial expeditions. Families first kept their secrets for protection and then out of habit. Michael Hammer, a research professor at the University of Arizona and an expert on Jewish genetics, said that fewer than 1% of non-Semites possessed the male-specific "Cohanim marker" or Cohen Modal Haplotype, which is prevalent among Jews claiming descent from hereditary priests. 30 of 78 Latinos tested in New Mexico (38.5%), were found to have Y-DNA with the Cohanim marker. Wider DNA testing of Hispanic populations has revealed between 10% and 15% of men living in New Mexico, south Texas and northern Mexico have a Y chromosome associated with the Middle East. Their history makes it most likely that they are Jewish rather than Arabic Muslim.
In 2008, a gene mutation that is typically found only in Ashkenazi Jews, and is linked to a virulent form of breast cancer in women, was discovered in a cluster of Hispanic Catholic women in southern Colorado, many of whom trace their family's roots to northern New Mexico. It was conclusively shown to be related to Jewish ancestry, given the history of the people in the area, and many families reported knowledge of a high incidence of cancer. After testing and notification of families, researchers worked with the extended families on genetic counseling and to develop health strategies for monitoring, early detection and treatment, as they were faced with the higher risk associated with the gene.
Other evidence of Jewish ancestry is language. According to a Jewish genealogy blog, so-called "Mountain Spanish", a Spanish dialect spoken by many of the old families of northern New Mexico and southern Colorado—and chiefly only among themselves—appears to be a form of Ladino or Judezmo. This was a hybrid language that developed among Sephardic Jews in Iberia, from Old Spanish, Portuguese and Hebrew, with sprinklings of Arabic, Greek and other languages, depending on the geographic region of the speakers or their ancestors.
Other claims of lost tribe status or other Jewish origin, have not yet been accepted by normative Jews.
- A tribe of Siberian Asian origin based in Central Russia connects their claims of Jewish rather than pantheistic practices with the Khazars. The latter, an invading tribe from either Mongolia or Kazakhstan that conquered and ruled Russia in the 9th century, is said to have adopted Judaism instead of Christianity or Islam, by their leaders' preference.
- A tribe in western Burma near the Indian and Bangladeshi borders has sought genetic research to vindicate its tradition that their ancestors were Syrian and Iranian Jews. Judaism has not become a major theological force in Southeast Asia. Introduced religions such as Hinduism and Islam, which converted several tribal groups, have existed in Indochina (Thailand, Cambodia and Vietnam) for hundreds or thousands of years.
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