Ezra 7:10, 25

For Ezra had set his heart (resolved) to study and interpret the Law of the LORD, and to practice it and teach His statutes and ordinances in Israel.

“You, Ezra, are to appoint magistrates and judges in accordance with the wisdom and instruction of your God which is in your hand, so that they may judge all the people who are in the province west of the [Euphrates] River; appoint those who know the laws of your God; and you may teach anyone who does not know them.