Book of Haggai
He said that Zerubbabel, governor of Judah, was the Lord’s chosen leader. Haggai writes that three weeks after his first warning, the rebuilding of the Temple began on September 7 521 BCE. "They came and began to work on the house of the LORD Almighty, their God, on the twenty-fourth day of the sixth month in the second year of Darius the King.