Haggai (pron.: //; Hebrew: חַגַּי, Ḥaggay or "Hag-i", Koine Greek: Ἀγγαῖος; Latin: Aggeus) was a Hebrew prophet during the building of the Second Temple in Jerusalem, and one of the twelve minor prophets in the Hebrew Bible and the author of the Book of Haggai. His name means "my holiday". He was the first of three prophets (with Zechariah, his contemporary, and Malachi, who lived about one hundred years later), who belonged to the period of Jewish history which began after the return from captivity in Babylon.
Scarcely anything is known of his personal history. He may have been one of the captives taken to Babylon by Nebuchadnezzar. He began his ministry about sixteen years after the return of the Jews to Judah (ca. 520 BC). The work of rebuilding the temple had been put to a stop through the intrigues of the Samaritans. After having been suspended for eighteen years, the work was resumed through the efforts of Haggai and Zechariah. They exhorted the people, which roused them from their lethargy, and induced them to take advantage of a change in the policy of the Persian government under Darius the Great.
Haggai and officials of his time 
Haggai supported the officials of his time, specifically Zerubbabel, the governor, and Joshua the High Priest. In the Book of Haggai, God refers to Zerubbabel as "my servant" as King David was, and says he will make him as a "signet ring," as King Jehoiachin was (Haggai 2:23; cf. Jer 22:24). The signet ring symbolized a ring worn on the hand of Yahweh, showing that a king held divine favor. Thus, Haggai is implicitly, but not explicitly, saying that Zerubbabel would preside over a restored Davidic kingdom.
Liturgical commemoration 
On the Eastern Orthodox liturgical calendar, Haggai is commemorated as a saint and prophet. His feast day is December 16 (for those churches which follow the traditional Julian Calendar, December 16 currently falls on December 29 of the modern Gregorian Calendar). He is also commemorated, in common with the other righteous persons of the Old Testament, on the Sunday of the Holy Fathers (the Sunday before the Nativity of the Lord).
See also 
- This article incorporates text from a publication now in the public domain: Easton, Matthew George (1897). "article name needed". Easton's Bible Dictionary (New and revised ed.). T. Nelson and Sons.
- Ezra 6:14
- Coogan, Michael. A Brief Introduction to the Old Testament. Oxford: Oxford University Press, 2009, p. 346