Then the prophets, Haggai the prophet, and Zechariah the son of Iddo, prophesied unto the Jews that were in Judah and Jerusalem in the name of the God of Israel, even unto them. Haggai - and Zechariah - These are the same whose writings we have among the twelve minor prophets.
The son of Iddo - That is, the grandson of Iddo; for Zechariah was the son of Barachiah, the son of Iddo. See his prophecy, Zephaniah 1:1 (note).