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.

Ezra 10:6

10:6 Then Ezra got up from in front of the temple of God and went to the room of Jehohanan son of Eliashib. While he stayed there, he did not eat food or drink water, for he was in mourning over the infidelity of the exiles.