Ezra 7:10, 25

For Ezra had set his heart to study the law of the LORD and to practice it, and to teach His statutes and ordinances in Israel.

“You, Ezra, according to the wisdom of your God which is in your hand, appoint magistrates and judges that they may judge all the people who are in the province beyond the River, even all those who know the laws of your God; and you may teach anyone who is ignorant of them.