Primacy of Simon Peter
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Primacy of Simon Peter, also known as Petrine Primacy (from the Latin Petrus for "Peter"), is the doctrine held by some Christians—especially Roman Catholics—that Simon Peter was the most prominent of the Twelve Apostles. They believe he had been distinguished by Jesus of Nazareth to hold the first place of honor and authority.
Peter was also known as "Cephas" from a Syriac surname given by Christ to Simon
The Roman Catholic church has always used this passage to substantiate the doctrine of the papacy. 
Biblical interpretation issues 
Since the Protestant Reformation, many non-Catholics, in disagreement with the historic Catholic Church view, have explained this passage with a combination of "bad Greek" and bad exegesis leading to a conclusion that supposedly invalidates the papacy. Yet, both of these traditional explanations of this passage have been termed incorrect by many recent Bible scholars. 
While the reasons for disagreement on the nature of the primacy are complex—hinging upon matters of doctrine, history, and politics, the debate is often reduced to a discussion of the meaning and translation of the "on this rock" passage:
In the Greek text, the new name given is "Πέτρος" (Petros), and in the second half of the same verse the word translated as "rock" is "πέτρα" (petra). One common Protestant argument historically has been that the translation from the New Testament in Hebrew into Greek is is tenuous at best as there is no real evidence or indication that the New Testament (in Greek) was ever translated from Hebrew or Aramaic texts, for that argument see Aramaic primacy. According to the Protestant transliteration argument, the language that Jesus spoke, the same word, "כפא" (cepha), was used for both Peter's name and for the rock on which Jesus said he would build his church.
A literal translation, in the style of the King James Version, of the words presumably used by Jesus would be "Thou art Rock, and upon this rock will I build my church". To preserve a supposed pun, the Greek text chose to translate Peter's name as "Πέτρος" rather than as "Κηφᾶς" (Cephas). Indeed, using the supposed transliteration of "כפא", which is found several times in the New Testament, would lose the play of words. Other problems exist with the Protestant theory. Greek was the language of government, markets, and every day life in Judea. Aramaic would have been spoken to people far beyond the reach of the Roman cities, and Hebrew had been largely lost except within educated religious ranks. In order to reach a larger audience, it would be far more practical and sensible if Jesus spoke to Jews and non-Jews alike in Greek ( , , , , , ).
Catholic view 
In Catholicism, it is also argued that this Primacy of Peter extends in perpetuity to the Pope over other bishops throughout the Church via the doctrine of Apostolic succession. This extension of Petrine Primacy to Popes is known as the Primacy of the Roman Pontiff, also known as Primacy of the Bishop of Rome. This Catholic Church doctrine holds that the papacy has authority delegated from Jesus to rule over the entire Church. There are various views on the nature of the primacy and how it has been exercised and passed on. This belief makes a distinction between the personal prestige of Peter and the supremacy of the office of pope which Catholics believe Jesus instituted in the person of Peter. Some, but not nearly all, Protestant denominations accept the Primacy of Peter concept, but believe it was only relevant during the lifetime of Peter. They do not believe the pope holds any authority over the Church Universal.
In the New Testament, which some call the New Law or "New Greek Testament", reports that Jesus changed Simon's name to Peter. Elsewhere in Scripture such a name change always denotes some change in status (e.g., Abram to Abraham, Jacob to Israel, and Saul to Paul).
Jesus also said to Peter in verse 19, "I will give to thee the keys of the kingdom of heaven." Especially for the Hebrew people, keys were a symbol of authority. Indeed, Jesus declares in the Book of Revelation, that He has the "keys of death and hell," which means that He has power over death and hell; also supports this. Cardinal Gibbons, in his book The Faith of Our Fathers, points out that keys are still a symbol of authority in today's culture; he uses the example of someone giving the keys of his house to another person, and that the latter represented the owner of the house in his absence.
Another source indicating Peter's supremacy can be found in clergy), and the "lambs" are understood as the weaker portion (the laity). From this, Catholics believe that Peter was given charge over Christ's whole flock, that is, the Church.where Christ tells Peter three times to "feed His sheep" and "feed His lambs." The "sheep" are understood to be the stronger portion of Jesus' flock (the
Moreover, Peter is always named first in all listings of the Apostles; Judas is invariably mentioned last. In Peter is described as the "first Apostle". It is important to note that Peter was neither the first Apostle in age nor election; therefore, Peter must be the first Apostle in the sense of authority, if you ignore the possibility of him being first in the sense of first in the list of Twelve Apostles.
Both Latin and Greek writers in the early church (such as the St. John Chrysostom) referred to "rock" as applying to both Peter personally and his faith symbolically, as well as seeing Christ's promise to apply more generally to his twelve apostles and the Church at large.
Vatican Council I defined the primacy of the bishop of Rome over the whole Catholic Church as an essential institution of the Church that can never be relinquished. This primacy is thus crucial to the understanding of the church from a Catholic viewpoint. At the same time, the history of papal primacy has always been imperfect and much-debated. This is reflected in the Catechism of the Catholic Church:
424 Moved by the grace of the Holy Spirit and drawn by the Father, we believe in Jesus and confess: 'You are the Christ, the Son of the living God.' On the rock of this faith confessed by St. Peter, Christ built his Church.
552 Simon Peter holds the first place in the college of the Twelve; Jesus entrusted a unique mission to him. Through a revelation from the Father, Peter had confessed: "You are the Christ, the Son of the living God." Our Lord then declared to him: "You are Peter, and on this rock I will build my Church, and the gates of Hades will not prevail against it." Christ, the living Stone, thus assures his Church, built on Peter, of victory over the powers of death. Because of the faith he confessed Peter will remain the unshakable rock of the Church. His mission will be to keep this faith from every lapse and to strengthen his brothers in it.
Regarding the Catholic interpretation of Matthew 16:18-19, Jaroslav Pelikan writes, "As Roman Catholic scholars now concede, the ancient Christian father Cyprian used it to prove the authority of the bishop—not merely of the Roman bishop, but of every bishop," referring to Maurice Bevenot's work on St. Cyprian.
Eastern Catholics agree with the above, but also consider Peter to be representative of all bishops. In this, they represent a middle-ground between the Catholic position and that of the Eastern Orthodox in the next section.
Though among the Twelve Peter is predominant in the first chapters of Acts of the Apostles, James "the brother of the Lord" is shown to be a leader in his own right in later chapters, indeed he is commonly considered the first Bishop of Jerusalem. Some assume James outranks Peter because he speaks last in the Council of Jerusalem and suggests the final ruling (concerning Gentile converts and Jewish practices such as circumcision) agreed upon by all, and because Paul mentions him before Peter and John when he calls them "pillars of the church" in Jerusalem. James was indeed the first bishop or patriarch of Jerusalem according to tradition. However, Catholics believe the bishop of Jerusalem was not by that fact the head of the Christian church, since the leadership rested in Peter as the "Rock" and "Chief Shepherd". It is believed Peter entrusted the Jerusalem community to James when he was forced to leave Jerusalem due to Herod Agrippa's persecution.
For Catholics, the fact that the new name for Simon is Peter is in fact itself very significant. In the Old Testament God is frequently referred to as a Rock or stone. Jesus refers to himself as the cornerstone. The Book of Daniel contains a prophecy that a Rock or stone from the mountain of God (heaven) will come down to earth and destroy the pagan kings. The rock will then grow itself until it covers the entire earth. Protestants consider this prophecy to allude to the end times but Catholics consider the prophecy to refer specifically to Jesus as the Rock from Heaven. Further, Catholics see the fact that the Rock does not leave but stays to until it covers the entire earth to mean that the Church, built of the Rock of Peter, is the body of Christ, the Rock from Heaven, and that the Rock will eventually cover the entire Earth which is why the term Catholic (universal or worldwide) is the most common designation for the Catholic Church.
Individuals and documents supporting the Petrine Doctrine 
Irenaeus has been called the most important witness of the Christianity in the 2nd century. Taught by Polycarp, who had been instructed by John the apostle, Irenaeus became bishop of Lyons in 178 CE. In his Against the Heresies, Irenaeus wrote, "Although there are many dialects in the world, the force of the tradition is one and the same. For the same faith is held and handed down by the churches established in the German states, the Spains, among the Celtic tribes, in the East, in Libya, and in the central portions of the world…" In Book 3, Irenaeus continues his defense of the unity of the church around the bishop, writing, "By pointing out the apostolic tradition and faith announced to mankind, which has been brought down to our time by successions of bishops, in the greatest, most ancient, and well known church, founded and established by the two most glorious apostles, Peter and Paul, at Rome, we can confound all who in any other way… gather more than they ought." al.
Iraenaus asserted the Doctrine of Apostolic Succession to counter the claims of heretics, especially the Gnostics who were attacking the theology and authority of the mainstream Church. He stated that one could find true teaching in several leading episcopal sees, not just at Rome. The doctrine he asserted, therefore, has two parts: lineage from the Apostles and right teaching. Even today a bishop can be in the line of succession, but schismatic and heretical as is the case with many episcopi vaganates who claim to or may have Catholic Orders, but have no following and have deviated from the Catholic Orthodox Faith as defined by the larger denominations such as the Orthodox, Anglicans, Catholics and Lutherans.
Ignatius, bishop of Antioch, was well known for his insistence on the authority of the bishop. In his writings to the church at Smyrna in 115 CE, he encouraged the Smyrnaeans to "Avoid divisions, as the beginning of evil. Follow, all of you, the bishop, as Jesus Christ followed the father; and follow the presbytery as the apostles. Let no man do aught pertaining to the Church apart from the bishop. Wheresoever the bishop appears, there let the people be, even as wheresoever Christ Jesus is, there is the Catholic Church" 
Born in Carthage around 155 CE, Tertullian became a priest around the age of forty and worked tirelessly to defend the faith. In his Scorpiace of 208 CE, Tertullian wrote, "No delay or inquest will meet Christians on the threshold… For though you think that heaven is still shut up, remember that the Lord left the keys of it to Peter here, and through him to the Church, which keys everyone will carry with him, if he has been questioned and made confession [of faith]."  Here, Tertullian not only defends Peter's primacy but also the Christian faith.
Thascius Cyprianus was made bishop of Carthage in 248 CE. but died only ten years later. Throughout his writings, Cyprian asserts that the Rock is Peter, and the Church rests upon him. He also claims that as the Church is settled upon the bishops, they too have authority. He writes, "They, who have departed from the Church, do not allow the Church to recall and bring back the lapsed. There is one God, and one Christ, and one Church, and one chair founded by the voice of the Lord on the rock. Another altar cannot be set up, nor a new priesthood made, besides the one altar and the one priesthood. Whoever gathers elsewhere scatters."  In his 251 CE. De Catholicae Ecclesiae Unitate, Cyprian asks, "He who deserts the chair of Peter, upon whom the Church was founded, does he trust himself to be in the Church?" 
John Chrysostom 
John Chrysostom was born at Antioch around 347 and would fight for the reform of the church until his exile in 404. His homilies emphasize his belief in the primacy. St. Chrysostom called Peter "the leader of the choir, the mouth of all the apostles, the head of that tribe, the ruler of the whole world, the foundation of the Church, the ardent lover of Christ…" His writings also emphasize the mortality of Peter, linking him more closely to the people of the Church.
Saint Augustine was born in Numidia in 354 and was baptized in Milan in 387. He was also bishop of Hippo from 397 til his death in 430. Augustine taught that Peter was first amongst the apostles, and thus represents the church. His Sermo states, "For Peter in many places in the Scriptures appears to represent the Church, especially in that place where it was said "I give to thee the keys… shall be loosed in heaven". What! did Peter receive these keys, and Paul not receive? Did Peter receive and John and James not receive, and the rest of the apostles? But since in a figure Peter represented the Church, what was given to him singly was given to the Church."  His 395 C.E. Contra Epistolam Manichaei states, "There are many other things which rightly keep me in the bosom of the Catholic Church… The succession of the priests keeps me, from the very seat of the apostle Peter (to whom the Lord after his resurrection gave charge to feed his sheep) down to the present episcopate." 
Innocent I 
Pope Innocent I held the papal office from 402 to 417. Modern theories of Papal Primacy developed around Innocent and his writings. In a 416 letter to Decentius, bishop of Eugubium, Innocent writes, "Who does not know or observe that it [the church order] was delivered by Peter the chief of the apostles to the Roman church, and is kept until now, and ought to be retained by all, and that nothing ought to be imposed or introduced which has no authority, or seems to derive its precedents elsewhere?"  It is also during this time that bishops began to recognize Innocent's primacy as Pope over other bishops in the West. This is made evident, among others, in a letter from the Council at Mileve to Innocent in 416 CE, which alludes the authority of "his holiness" drawn from the authority of Scripture. The doctrine of Primacy was beginning to take shape with Innocent's papacy.
Leo I 
Based on his knowledge of the Petrine texts of the Gospel, and his writings which expound upon it, it is easy to see that Pope Leo I identified with the authority bestowed on Peter as bishop of Rome. Leo himself was consecrated bishop of Rome in 440. He writes that "The right of this power did indeed pass on to other apostles, and the order of this decree passed on to all the chiefs of the Church; but not in vain was that which was imparted to all entrusted but one. Therefore this is commended to Peter separately, because all the rulers of the Church are invested with the figure of Peter… So then in Peter the strength of all is fortified, and the help of divine grace is so ordered that the stability which through Christ is given to Peter, through Peter is conveyed to the apostles" (Giles, 280). The Council of Chalcedon would later refer to Leo as "him who had been charged with the custody of the vine by the savior." 
Gregory VII 
The Gregorian Reform Movement was rather a series of movements many of which involved the reform of the Catholic Church, headed by Gregory VII, formerly the Archdeacon Hildebrand. Gregory became Pope in 1073 with the objective of reforming not the body of the church, but a purification of the clergy in general. Gregory is perhaps most recognized with the quarrel between himself and King Henry IV of Germany, known as the "Investiture Contest". Gregory's Dictus Pape outlines his policies and ideals, as well as those of the Catholic Church. In this work, Gregory claims that the pope has power to depose and restore bishops, and also effectively reduces the authority of other bishops. This doctrine supported the idea that Rome and the church here also afforded primacy over all other churches. Gregory's papacy also bolstered the power of the Church over that of the State. The Gregorians defended the ideal of a separation of powers, claiming "Let kings have what belongs to kings, and priests have what belongs to priests."  The Petrine Primacy was now more affirmed than ever.
Many challenges faced the Popes claiming primacy throughout the history of Catholicism. The Edict of Milan, the Council of Nicea, and the First Council of Constantinople all dealt with the issue of primacy in that they amended the power of the popes over the other bishops. The third canon of the First Council of Constantinople of 381 declares Constantinople the new Rome, gives the Bishop of Rome the seat of honor and gives the Bishop of Constantinople second place in honor. The Council of Ephesus in 431 offers debate as to whether the results determine that the Pope is at the head of the Church, or rather that it is under the authority of a council of bishops (Giles, 238-256). Although the highlight of the Council of Chalcedon in 451 was the confession of the Person of Christ, the Council also resulted in limitations to the powers of the bishops. Many letters of the Council identify its position as in agreement with papal primacy. Those present employ titles such as "the most holy and beloved of God" and "ecumenical archbishop and patriarch of great Rome" to address Pope Leo. Thus, as not all can be satisfied with the results, The Council of Chalcedon resulted in a schism with the Oriental Orthodox Church.
Internally, people questioned who rightfully was pope, while others wondered as to the role the Pope was to play outside of Rome. The papacy's most widely-known crisis, as well as its largest challenge to authority, came with the "Great Western Schism" (also known as the "Papal Schism") in the late Middle Ages, dating from 1378-1417. Seven popes ruled from Avignon in France in the early 14th century, until Gregory XI risked returning to turbulent Italy and the Roman seat. Following the close of the Avignon papacy in 1377, Urban VI, an Italian, took the reins over a predominantly French college of Cardinals. The Cardinals called the election into question and elected Clement VII as Pope. Germany, Italy, England, and the rest of Northern and Eastern Europe remained loyal to Urban, while France, Spain, Scotland, and Rome followed Clement VII (1378–1394) and his successor, Benedict XIII (1394–1417) who would reside in Avignon. Although thought many times to have been improved, the divide between the two papacies has never been rejoined, calling into question both the legitimacy of the popes and the Petrine Doctrine itself.
Eastern Orthodox view 
Many hold the Primacy of Peter 
The Eastern Orthodox Church regards Apostle Peter, together with Apostle Paul, as "preeminent apostles." Another title used for Peter is Coryphaeus, which could be translated as "Choir-director," or lead singer.
Orthodox scholars follow St. John Chrysostom and the Byzantine tradition in seeing Peter as the icon of the episcopate with his title of protos (first) implying a certain level of authority over the other apostles. In this traditional Orthodox and Patristic view, the Church is the local Eucharistic assembly ("the diocese" in today's terminology) and the one who holds the "Chair of Peter" (St. Cyprian's expression) is the bishop. As a result, the primacy of Peter is relevant to the relationship between the bishop and the presbyters, not between the bishop of Rome and the other bishops who are all equally holding Peter's chair.
As John Meyendorff explained:
A very clear patristic tradition sees the succession of Peter in the episcopal ministry. The doctrine of St Cyprian of Carthage on the “See of Peter” being present in every local Church, and not only in Rome, is well-known. It is also found in the East, among people who certainly never read the De unitate ecclesia of Cyprian, but who share its main idea, thus witnessing to it as part of the catholic tradition of the Church. St Gregory of Nyssa, for example, affirms that Christ “through Peter gave to the bishops the keys of the heavenly honors,” and the author of the Areopagitica, when speaking of the “hierarchs” of the Church, refers immediately to the image of St Peter. A careful analysis of ecclesiastical literature both Eastern and Western, of the first millennium, including such documents as the lives of the saint, would certainly show that this tradition was a persistent one; and indeed it belongs to the essence of Christian ecclesiology to consider any local bishop to be the teacher of his flock and therefore to fulfill sacramentally, through apostolic succession, the office of the first true believer, Peter... There exists, however, another succession, equally recognized by Byzantine theologians, but only on the level of the analogy existing between the apostolic college and the episcopal college, this second succession being determined by the need for ecclesiastical order. Its limits are determined by the Councils, and - in the Byzantine practice – by the “very pious emperors.”—The Primacy of Peter, p. 89
The notion that many Sees were ‘’of Peter’’ had also once been held in the West:
"Your most sweet Holiness has spoken much in your letter to me about the chair of Saint Peter, Prince of the apostles, saying that he himself now sits on it in the persons of his successors...Wherefore though there are many apostles, yet with regard to the principality itself the See of the Prince of the apostles alone has grown strong in authority, which in three places is the See of one...He himself stablished (sic) the See in which, though he was to leave it, he sat for seven years. Since then it is the See of one, and one See, over which by Divine authority three bishops now preside, whatever good I hear of you, this I impute to myself. "
Consequently, Eastern and Oriental Orthodox do not recognize the Bishop of Rome as the unique successor of St. Peter and consider him to be in a state of schism and heresy. However, the Ecumenical Patriarch of Constantinople sends a delegation each year to Rome to participate in the celebration of the feast of Sts. Peter and Paul.
“Of the church of Rome, Linus the son of Claudia was the first, ordained by Paul; and Clemens (Clement), after Linus' death, the second, ordained by me Peter."
Keys and rock not exclusive to Peter 
Eastern Orthodox theologians agree that in , "rock" is a likely reference to Peter personally since the very name "Peter" means "rock.". However implies that the other Apostles were given the same powers. Although the word keys is explicitly absent from this later verse a number of Church Fathers recognised that the meaning of keys is implicitly there; that the rest of the church has the keys:
"What, now, (has this to do) with the Church, and) your (church), indeed, Psychic? For, in accordance with the person of Peter, it is to spiritual men that this power will correspondently appertain, either to an apostle or else to a prophet."
“This faith it is which is the foundation of the Church; through this faith the gates of hell cannot prevail against her. This is the faith which has the keys of the kingdom of heaven. Whatsoever this faith shall have loosed or bound on earth shall be loosed or bound in heaven. This faith is the Father's gift by revelation; even the knowledge that we must not imagine a false Christ, a creature made out of nothing, but must confess Him the Son of God, truly possessed of the Divine nature
“He has given, therefore, the keys to His Church, that whatsoever it should bind on earth might be bound in heaven, and whatsoever it should loose on earth might be, loosed in heaven; that is to say, that whosoever in the Church should not believe that his sins are remitted, they should not be remitted to him; but that whosoever should believe and should repent, and turn from his sins, should be saved by the same faith and repentance on the ground of which he is received into the bosom of the Church. For he who does not believe that his sins can be pardoned, falls into despair, and becomes worse as if no greater good remained for him than to be evil, when he has ceased to have faith in the results of his own repentance.”
"...Peter, the first of the apostles, receive the keys of the kingdom of heaven for the binding and loosing of sins; and for the same congregation of saints, in reference to the perfect repose in the bosom of that mysterious life to come did the evangelist John recline on the breast of Christ. For it is not the former alone but the whole Church, that bindeth and looseth sins; nor did the latter alone drink at the fountain of the Lord's breast, to emit again in preaching, of the Word in the beginning, God with God, and those other sublime truths regarding the divinity of Christ, and the Trinity and Unity of the whole Godhead."
"...the keys that were given to the Church,"
"How the Church? Why, to her it was said, "To thee I will give the keys of the kingdom of heaven, and whatsoever thou shall loose on earth shall be loosed in heaven, and whatsoever thou shall bind on earth shall be bound in heaven."
Moreover, Eastern Orthodox theologians follow such Fathers as St. John Chrysostom by clarifying that "rock" simultaneously refers to Peter (instrumentally) as well as Peter's confession of faith which is what has ultimate significance in establishing the Church.
Some Orthodox scholars do not see Peter as being in any way above the other apostles, arguing that Peter did not have power and authority over them during Christ's public ministry. There were no positions of power between the twelve, only "degrees of intimacy" or "degrees of honor." According to this view, Peter has a weak symbolic primacy or primacy of honor (in the sense of a purely honorary primacy). In the patristic era, this was actually the Western view held by St Augustine. Others (see above), following the traditional Byzantine view of St John Chrysostom see Peter as the icon of the bishop and therefore endowed with authority in the Church (i.e. the diocese).
"Come now, you who would indulge a better curiosity, if you would apply it to the business of your salvation, run over the apostolic churches, in which the very thrones of the apostles are still pre-eminent in their places, in which their own authentic writings are read, uttering the voice and representing the face of each of them severally. Achaia is very near you, (in which) you find Corinth. Since you are not far from Macedonia, you have Philippi; (and there too) you have the Thessalonians. Since you are able to cross to Asia, you get Ephesus. Since, moreover, you are close upon Italy, you have Rome, from which there comes even into our own hands the very authority (of apostles themselves). How happy is its church, on which apostles poured forth all their doctrine along with their blood! where Peter endures a passion like his Lord's! where Paul wins his crown in a death like John's where the Apostle John was first plunged, unhurt, into boiling oil, and thence remitted to his island-exile!"
"Was anything withheld from the knowledge of Peter, who is called "the rock on which the church should be built," who also obtained "the keys of the kingdom of heaven," with the power of "loosing and binding in heaven and on earth?" Was anything, again, concealed from John, the Lord's most beloved disciple, who used to lean on His breast to whom alone the Lord pointed Judas out as the traitor, whom He commended to Mary as a son in His own stead?"
"As a king sending forth governors, gives power to cast into prison and to deliver from it, so in sending these forth, Christ investeth them with the same power.”
"…though He has delegated the care of His sheep to many shepherds, yet He has not Himself abandoned the guardianship of His beloved flock."
Proofs from the Bible 
Other biblical texts seem to suggest that Peter was not head of the church in any de jure sense.shows the apostles considering a question by means of calling a Council. Although Peter is mentioned as speaking first, and all are silent - all are silent too when Paul speaks. Further if Peter's pronouncement was authoritative then Paul speaking afterwards would be superfluous; given that the 'decision' had already been made.
Equality of all the Apostles is shown in; that all the Apostles together are the foundation of the church.
shows that Paul taught in the same terms as Peter did.
The forgiveness of sins (one of the powers of the keys) is granted to manyand, .
Examples from history 
Orthodox historians also maintain that Rome's authority in the early Eastern Roman (or Byzantine) empire was recognized only partially because of Rome's Petrine character, and that this factor was not the decisive issue. Moreover, the Orthodox view is that Rome's privileges were not understood as an absolute power (i.e., the difference between primacy and supremacy). In the East, there were numerous "apostolic sees", Jerusalem being considered the "mother of all churches," and the bishop of Antioch could also claim the title of successor to Peter, being that Peter was the first bishop of Antioch. "Canon 28 of Chalcedon was for [the Byzantines] one of the essential texts for the organization of the Church: 'It is for right reasons that the accorded privileges to old Rome, for this city was the seat of the Emperor and the Senate.' ... The reason why the Roman Church had been accorded an incontestable precedence over all other apostolic churches was that its Petrine and Pauline 'apostolicity' was in fact added to the city's position as the capital city, and only the conjunction of both of these elements gave the Bishop of Rome the right to occupy the place of a primate in the Christian world with the consensus of all the churches."
Protestant views 
A major debate between Catholics and Protestants centers on Matthew 16:18 where Jesus tells Peter: "You are Peter, and on this rock I will build my Church...." Catholics interpret the verse as saying that Jesus would build his church on Peter, the apostle: Jesus told Peter (Rock) that he would build his Church on this Rock (Peter), and that Peter was made the shepherd of the apostolic flock
One Protestant view on the Matthew verse agrees with the Catholic view and again the disagreements about primacy stem from doctrinal sources, and disagreements such as those over the identification of Simon Peter with the Pope. Other Protestants assert the following, based specifically on the verse in Matthew:
Jesus gives Simon the new name petros. However he refers to the "rock" as petra. The inspired New Testament Scriptures were written in Greek, not Aramaic. What Jesus might have said in Aramaic is conjecture. In Greek, there is a distinction between the two words, πέτρα being a "rock" but πέτρος being a "small stone" or "pebble". (James G. McCarthy translates the two as "mass of rock" and "boulder or detached stone", respectively.) Jesus is not referring to Peter when talking about "this rock", but is in fact referring to Peter's confession of faith in the preceding verses. Jesus thus does not declare the primacy of Peter, but rather declares that his church will be built upon the foundation of the revelation of and confession of faith of Jesus as the Christ.
Many Protestant scholars, however, reject this position, such as Craig L. Blomberg who states, "The expression ‘this rock’ almost certainly refers to Peter, following immediately after his name, just as the words following ‘the Christ’ in verse 16 applied to Jesus. The play on words in the Greek between Peter’s name (Petros) and the word ‘rock’ (petra) makes sense only if Peter is the Rock and if Jesus is about to explain the significance of this identification." [New American Commentary: ]
Donald A. Carson III (Baptist and Professor of New Testament at Trinity Evangelical Seminary) states, "Although it is true that petros and petra can mean "stone" and "rock" respectively in earlier Greek, the distinction is largely confined to poetry. Moreover, the underlying Aramaic is in this case dubious at best; and most probably kepha was used in both clauses ("you are kepha" and "on this kepha"), since the word was used both for a name and for a "rock". The Peshitta (written in Syriac, a language cognate with Aramaic) makes no distinction between the words in the two clauses. The Greek makes the distinction between petros and petra simply because it is trying to preserve the pun, and in Greek the feminine petra could not very well serve as a masculine name."
An alternate Protestant argument is that when Jesus said "upon this rock" in the aforementioned Matthew verse, he referred to himself, in reference to, which states that "God...is the Rock, his work is perfect". This idea also appears in , which says "...that Rock is Christ." In , Jesus is called "the chief cornerstone".
Meaning of "Rock" 
In the original Greek the word translated as "Peter" is Πέτρος (Petros) and that translated as "rock" is πέτρα (petra), two words that, while not identical, give an impression of one of many times when Jesus used a play on words. Furthermore, since Jesus presumably spoke to Peter in their native Aramaic language, he would have used kepha in both instances. The Peshitta Text and the Old Syriac text use the word "kepha" for both "Peter" and "rock" in . says Jesus called Simon "Cephas", as does Paul in some letters. He was instructed by Christ to strengthen his brethren, i.e., the apostles.
Early Catholic Latin and Greek writers (such as St. John Chrysostom) considered the "foundation rock" as applying to both Peter personally and his confession of faith (or the faith of his confession) symbolically, as well as seeing Christ's promise to apply more generally to his twelve apostles and the Church at large. This "double meaning" interpretation is present in the current Catechism of the Catholic Church.
Protestant counter-claims to the Catholic interpretation are largely based on the difference between the Greek words translated "Rock" in the Matthean passage. In classical Attic Greek petros generally meant "pebble," while petra meant "boulder" or "cliff." Accordingly, taking Peter's name to mean "pebble," they argue that the "rock" in question cannot have been Peter, but something else, either Jesus himself, or the faith in Jesus that Peter had just professed. However, the New Testament was written in Koiné Greek, not Attic Greek, and some authorities say no significant difference existed between the meanings of petros and petra.
However, even though the feminine noun petra is translated as rock in the phrase "on this rock I will build my church," the word petra (πέτρα in Greek) is also used atin describing Jesus Christ, which reads: "They all ate the same spiritual food and drank the same spiritual drink; for they drank from the spiritual rock that accompanied them, and that rock was Christ."
Although is used as a primary proof-text for the Catholic doctrine of Papal supremacy, Protestant scholars say that prior to the Reformation of the sixteenth century, Matthew 16 was very rarely used to support papal claims. Their position is that most of the early and medieval Church interpreted the 'rock' as being a reference either to Christ or to Peter's faith, not Peter himself. They understand Jesus' remark to have been his affirmation of Peter's testimony that Jesus was the Son of God.
Another rebuttal of the Catholic position is that if Peter really means the Rock which makes him the chief of Apostles, it would contradict Bible's teaching in which says that the church's foundation is the apostles and prophets, not Peter alone. They posit that the meaning of is that Jesus uses a play on words with Peter's name to say that the confession he had just made is the rock on which the church is built.
Other theologically conservative Christians, including Confessional Lutherans, also rebut comments made by Karl Keating and D.A. Carson who claim that there is no distinction between the words petros and petra in Koine Greek. The Lutheran theologians state that the dictionaries of Koine/NT Greek, including the authoritative Bauer-Danker-Arndt-Gingrich Lexicon, indeed list both words and the passages that give different meanings for each. The Lutheran theologians further note that:
We honor Peter and in fact some of our churches are named after him, but he was not the first pope, nor was he Roman Catholic. If you read his first letter, you will see that he did not teach a Roman hierarchy, but that all Christians are royal priests. The same keys given to Peter in Matthew 16 are given to the whole church of believers in Matthew 18
Partial Protestant support 
Partial support for the Catholic position comes from Oscar Cullmann. He disagrees with Luther and the Protestant reformers who held that by "rock" Christ did not mean Peter, but meant either himself or the faith of His followers. He believes the meaning of the original Aramaic is very clear: that "Kepha" was the Aramaic word for "rock", and that it was also the name by which Christ called Peter.
Yet, Cullmann sharply rejects the Catholic claim that Peter began the papal succession. He writes: "In the life of Peter there is no starting point for a chain of succession to the leadership of the church at large." While he believes the Matthew text is entirely valid and is in no way spurious, he says it cannot be used as "warrant of the papal succession."
Cullmann concludes that while Peter was the original head of the apostles, Peter was not the founder of any visible church succession.
There are other Protestant scholars who also partially defend the historical Catholic position about "Rock." Taking a somewhat different approach from Cullman, they point out that the Gospel of Matthew was not written in the classical Attic form of Greek, but in the Hellenistic Koine dialect in which there is no distinction in meaning between petros and petra. Moreover, even in Attic Greek, in which the regular meaning of petros was a smallish "stone," there are instances of its use to refer to larger rocks, as in Sophocles, Oedipus at Colonus v. 1595, where petros refers to a boulder used as a landmark, obviously something more than a pebble. In any case, a petros/petra distinction is irrelevant considering the Aramaic language in which the phrase might well have been spoken. In Greek, of any period, the feminine noun petra could not be used as the given name of a male, which may explain the use of Petros as the Greek word with which to translate Aramaic Kepha.
Yet, still other Protestant scholars believe that Jesus in fact did mean to single out Peter as the very rock which he will build upon, but that the passage does nothing to indicate a continued succession of Peter's implied position. They assert that Matthew uses the demonstrative pronoun taute, which allegedly means "this very" or this same, when he refers to the rock on which Jesus' church will be built. He also uses the Greek word for "and", kai. It is alleged that when a demonstrative pronoun is used with kai, the pronoun refers back to the preceding noun. The second rock Jesus refers to must then be the same rock as the first one; and if Peter is the first rock he must also be the second.
Lutheran view 
From the Book of Concord:
Chrysostom says thus: “Upon this rock,” not upon Peter. For He built His Church not upon man, but upon the faith of Peter. But what was his faith? “Thou art the Christ, the Son of the living God.” And Hilary says: To Peter the Father revealed that he should say, “Thou art the Son of the living God.” Therefore, the building of the Church is upon this rock of confession; this faith is the foundation of the Church. "
See also 
- Apostolic Succession
- Early Christianity
- Historical episcopate
- Papal infallibility
- Papal supremacy
- Petrine theory
- Addis, William E. & Thomas Arnold (rev. T.B. Scannell). Catholic Dictionary. (9th ed.) London: Virtue & Co., 1925. (Provides citations for the use of πέτρος to mean "rock" in classical works)
- "Who is the Rock of Matthew 16:18?". Retrieved June 21, 2005.
- "Commentary on Matthew 16:17–19". The Catholic Evangel. Archived from the original on 2009-10-26. Retrieved June 21, 2005.
- "Section IV: Authority". Refutation of James G. McCarthy's 'The Gospel According to Rome'. Retrieved June 21, 2005.
- "For Peter was probably in fact and effect the bridge-man (pontifex maximus!) who did more than any other to hold together the diversity of first-century Christianity. James the brother of Jesus, and Paul of Tarsus, the two other most prominent leading figures in first-century Christianity, were too much identified with their respective "brands" of Christianity, at least in the eyes of Christians at the opposite ends of this particular spectrum. But Peter, as shown particularly by the Antioch episode in Dunn, James D.G. The Canon Debate. McDonald & Sanders editors, 2002, ch. 32, p. 577., had both a care to hold firm to his Jewish heritage—which Paul lacked—and an openness to the demands of developing Christianity, which James lacked. John might have served as a figure of the center holding together the extremes, but if the writings linked with his name are at all indicative of his own stance, he was too much of an individualist to provide such a rallying point. Others could link the developing new religion more firmly to its founding events and to Jesus himself. But none of them, including the rest of the twelve, seem to have played any role of continuing significance for the whole sweep of Christianity—though James the brother of John might have proved an exception had he been spared." [Italics original]
- John Engler. "The Rock-Foundation of Matthew 16:17-20". <http://www.greatcommission.com/Matthew161720.html> Accessed 12 Mar 2013
- Stagg, Frank. New Testament Theology. Broadman Press, 1962. ISBN 0-8054-1613-7
-  4074. petros - Strong's Greek Concordance
-  4073. petra - Strong's Greek Concordance
- In French, the translation, "Tu es Pierre, et sur cette pierre je bâtirai mon Église, et les portes de l'enfer ne prévaudront point contre elle preserves exactly the play on words in what is believed to be the original Aramaic.
- Knight, Kevin. "Question 106. The law of the Gospel, called the New Law, considered in itself." New Advent. Sept. 11, 2009: http://www.newadvent.org/summa/2106.htm
- Veselin Kesich (1992). "Peter's Primacy in the New Testament and the Early Tradition" in The Primacy of Peter. St. Vladimir's Seminary Press. pp. 61–66.
- Schatz, Klaus. Papal Primacy: From Its Origins to the Present. Translated by John A. Otto and Linda M. Maloney. Collegeville, MN: The Liturgical Press, 1996. p. x.
- "Cathecism of the Catholic Church". Vatican.va. Retrieved 2012-07-22.
- Pelikan, Jaroslav (1959). The Riddle of Roman Catholicism. New York: Abingdon Press. p. 78.
- Bevenot, Maurice. St. Cyprian: The Lapsed, The Unity of the Catholic Church. pp. 6–8.
- Mckenzie, John L. The Dictionary of the Bible (Catholic)
- The Navarre Bible, footnotes
- Giles, E., ed. Documents Illustrating Papal Authority: A.D. 96-454. London: S.P.C.K., 1952. p. 6.
- Giles, E., ed. Documents Illustrating Papal Authority: A.D. 96-454. London: S.P.C.K., 1952. p. 8.
- Giles, E., ed. Documents Illustrating Papal Authority: A.D. 96-454. London: S.P.C.K., 1952. p. 9.
- Giles, E., ed. Documents Illustrating Papal Authority: A.D. 96-454. London: S.P.C.K., 1952. p. 4.
- Giles, E., ed. Documents Illustrating Papal Authority: A.D. 96-454. London: S.P.C.K., 1952. p. 23.
- Giles, E., ed. Documents Illustrating Papal Authority: A.D. 96-454. London: S.P.C.K., 1952. pp. 29-30.
- Giles, E., ed. Documents Illustrating Papal Authority: A.D. 96-454. London: S.P.C.K., 1952. p. 53.
- Giles, E., ed. Documents Illustrating Papal Authority: A.D. 96-454. London: S.P.C.K., 1952. p. 126.
- Giles, E., ed. Documents Illustrating Papal Authority: A.D. 96-454. London: S.P.C.K., 1952. p. 163.
- Giles, E., ed. Documents Illustrating Papal Authority: A.D. 96-454. London: S.P.C.K., 1952. p. 175.
- Giles, E., ed. Documents Illustrating Papal Authority: A.D. 96-454. London: S.P.C.K., 1952. p. 182.
- Giles, E., ed. Documents Illustrating Papal Authority: A.D. 96-454. London: S.P.C.K., 1952. p. 194.
- Giles, E., ed. Documents Illustrating Papal Authority: A.D. 96-454. London: S.P.C.K., 1952. p. 198.
- Giles, E., ed. Documents Illustrating Papal Authority: A.D. 96-454. London: S.P.C.K., 1952. p. 323.
- Morris, Colin. The Papal Monarchy: The Western Church from 1050 to 1250. Oxford: Clarendon Press, 1989. p. 101.
- Morris, Colin. The Papal Monarchy: The Western Church from 1050 to 1250. Oxford: Clarendon Press, 1989. p. 129.
- Morris, Colin. The Papal Monarchy: The Western Church from 1050 to 1250. Oxford: Clarendon Press, 1989. p. 133.
- Giles, E., ed. Documents Illustrating Papal Authority: A.D. 96-454. London: S.P.C.K., 1952. p. 297-321.
- Logan, F. Donald. A History of the Church in the Middle Ages. New York: Routledge, 2002. p. 133.
- Schatz, Klaus. Papal Primacy: From Its Origins to the Present. Translated by John A. Otto and Linda M. Maloney. Collegeville, MN: The Liturgical Press, 1996. p. 100.
- Logan, F. Donald. A History of the Church in the Middle Ages. New York: Routledge, 2002. p. 297.
- John Meyendorff, et al. (1963), The Primacy of Peter in the Orthodox Church (St. Vladimir's Seminary Press, Crestwood NY, ISBN 978-0-88141-125-6)
- Veselin Kesich (1992). "Peter's Primacy in the New Testament and the Early Tradition" in The Primacy of Peter. St. Vladimir's Seminary Press. pp. 67–90.
- Cleenewerck Laurent (2008). His Broken Body: Understanding and Healing the Schism between the Roman Catholic and Eastern Orthodox Churches. EUC Press. pp. 257–263.
- ’’To Eulogius, Bishop of Alexandria’’Book VII, Epistle XL
- ’’Apostolic Teaching and Constitutions’’, Book 7, Chapter XLVI – “Who Were They that the Holy Apostles Sent and Ordained?”
- Veselin Kesich (1992). "Peter's Primacy in the New Testament and the Early Tradition" in The Primacy of Peter. St. Vladimir's Seminary Press. pp. 47–48.
- ’’On Modesty’’. Book VII. Chapter XXI
- ‘’On the Trinity’’. Book VI.37
- Homilies on the Gospel of John. Preface to Homily 1.2
- ’’On Christian Doctrine’’ Book I. Chapter 18.17 ‘’The Keys Given to the Church’’.
- ’’On the Gospel of John’’. Tractate CXXIV.7
- ’’A Treatise Concerning the Correction of the Donatists.’’ Chapter 10.45
- ’’Ten Homilies on the First Epistle of John. Homily X.10
- ‘’The Prescription Against Heretics’’: Chapter XXXVI.-The Apostolic Churches the Voice of the Apostles. Let the Heretics Examine Their Apostolic Claims, in Each Case, Indisputable. The Church of Rome Doubly Apostolic; Its Early Eminence and Excellence. Heresy, as Perverting the Truth, is Connected Therewith
- ‘’The Prescription Against Heretics’’:Chapter XXII.-Attempt to Invalidate This Rule of Faith Rebutted. The Apostles Safe Transmitters of the Truth. Sufficiently Taught at First, and Faithful in the Transmission.
- “On the Gospel of John” On John xx. 10, 11. (Homily LXXXVI)
- ’’Sermon III’’. (On His Birthday, III: Delivered on the Anniversary of His Elevation to the Pontificate, Chapter II)
- Veselin Kesich (1992). "Peter's Primacy in the New Testament and the Early Tradition" in The Primacy of Peter. St. Vladimir's Seminary Press. p. 68.
- "PETER IS THE ROCK (This Rock: January 1998)". Catholic.com. Retrieved 2012-07-16.
- "Who is the Rock?". Users.stargate.net. Retrieved 2012-07-16.
- "http://www.catholic.com/library/Peter_the_Rock.asp". Catholic.com. 2004-08-10. Retrieved 2012-07-22.
- "http://www.peshitta.org/pdf/Mattich16.pdf" (PDF). Retrieved 2012-07-22.
- Catechism of the Catholic Church, Articles 424 and 552
- Mathison, Keith A., The Shape of Sola Scriptura, pp.184–185
- WELS Topical Q&A: Matthew 16:18 - Peter, This Rock, by Archive.org
- Danker, Frederick W., The concise Greek-English lexicon of the New Testament,p282
- Rykle Borger, "Remarks of an Outsider about Bauer's Worterbuch, BAGD, BDAG, and Their Textual Basis," Biblical Greek Language and Lexicography: Essays in Honor of Frederick W. Danker, Bernard A. Tayler (et al. eds.) pp. 32–47.
- "WELS Topical Q&A". Arkiv.lbk.cc. Retrieved 2012-07-22.
- "Religion: Peter & the Rock." Time," Dec. 07, 1953. http://www.time.com/time/magazine/article/0,9171,890753-1,00.html Accessed Oct. 08, 2009
- D. A. Carson in The Expositor's Bible Commentary (Grand Rapids: Zondervan, 1984).
- Jesus, Peter & the Keys: A Scriptural Handbook on the Papacy
- "Treatise on the Power and Primacy of the Pope". Book of Concord. Retrieved 2012-07-16.
Further reading 
- Cleenewerck, Laurent. His Broken Body: Understanding and Healing the Schism between the Roman Catholic and Eastern Orthodox Churches (Section II/3 and Section IV) (ISBN 0-61518-361-1)
- Chadwick, Henry. The Church in Ancient Society: From Galilee to Gregory the Great. Oxford: Oxford University Press, 2001.
- Collins, Paul. Upon This Rock: The Popes and their Changing Roles. Melbourne: Melbourne University Press, 2000.
- Evans, G.R. The Church in the Early Middle Ages. I.B. Tauris: New York, 2007.
- Maxwell-Stuart, P.G. Chronicle of the Popes : the Reign-by-Reign Record of the Papacy from St. Peter to the Present. 2nd ed. London : Thames & Hudson, 2006.
- Meyendorff, John, ed. The Primacy of Peter: Essays in Ecclesiology and the Early Church. (ISBN 0-88141-125-6)
- Perkins, Pheme. Peter: Apostle for the Whole Church. Columbia: University of South Carolina Press, 1994.
- Pham, John-Peter. Heirs of the Fisherman: Behind the Scenes of Papal Death and Succession. New York: Oxford University Press, 2004.
- Ray, Stephen K. Upon This Rock: St. Peter and the Primacy of Rome in Scripture and the Early Church. (ISBN 0-89870-723-4)
- Winter, Michael M. Saint Peter and the Popes. Baltimore: Helicon Press, 1960.