Ezra 7:6-11, 27-28

this Ezra went up from Babylon; and he was a ready 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 porters, and the Nethinims, 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 began he to go up from Babylon, and on the first day of the fifth month came he 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 judgments. Now this is the copy of the letter that the king Artaxerxes gave unto Ezra the priest, the scribe, even a scribe of the words of the commandments of the LORD, and of his statutes to Israel.

Blessed be the LORD God of our fathers, which hath put such a thing as this in the king's heart, to beautify the house of the LORD which is in Jerusalem: and hath extended mercy unto me before the king, and his counsellors, and before all the king's mighty princes. And I was strengthened as the hand of the LORD my God was upon me, and I gathered together out of Israel chief men to go up with me.