Ezra 7:10

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.

Ezra 7:25

7:25 “Now you, Ezra, in keeping with the wisdom of your God which you possess, appoint judges and court officials who can arbitrate cases on behalf of all the people who are in Trans-Euphrates who know the laws of your God. Those who do not know this law should be taught.