This Ezra went up from Babylon; and he was a skilled scribe in the law of Moses, which the LORD God of Israel had given: and the king granted him all his request, according to the hand of the LORD his God upon him. And there went up some of the children of Israel, and of the priests, and the Levites, and the singers, and the gatekeepers, and the Nethinim, unto Jerusalem, in the seventh year of Artaxerxes the king.

And he came to Jerusalem in the fifth month, which was in the seventh year of the king. For upon the first day of the first month he began to go up from Babylon, and on the first day of the fifth month he came to Jerusalem, according to the good hand of his God upon him. For Ezra had prepared his heart to seek the law of the LORD, and to do it, and to teach in Israel statutes and ordinances. (Ezra 7:6-10)