Ezra 2:63

2:63 The governor instructed them not to eat any of the sacred food until there was a priest who could consult the Urim and Thummim.

Ezra 7:10-11

7:10 Now Ezra had dedicated himself to the study of the law of the Lord, to its observance, and to teaching its statutes and judgments in Israel.

Artaxerxes Gives Official Endorsement to Ezra’s Mission

7:11 What follows is a copy of the letter that King Artaxerxes gave to Ezra the priestly scribe. Ezra was a scribe in matters pertaining to the commandments of the Lord and his statutes over Israel:

Ezra 10:10

10:10 Then Ezra the priest stood up and said to them, “You have behaved in an unfaithful manner by taking foreign wives! This has contributed to the guilt of Israel.