Ezra 10:2-6

Shecaniah the son of Jehiel, one of the sons of Elam, said to Ezra, “We have been unfaithful to our God and have married foreign women from the peoples of the land; yet now there is hope for Israel in spite of this.

So now let’s make a covenant with our God to send away all the wives and their children, following the counsel of my lord and of those who fear the commandment of our God; and let it be done according to the Law.

Arise! For this matter is your responsibility, but we will be with you; be courageous and act.”

Then Ezra stood and made the leading priests, the Levites, and all Israel take an oath that they would do according to this proposal; so they took the oath.

Then Ezra rose from before the house of God and went into the chamber of Jehohanan the son of Eliashib. Although he went there, he did not eat bread nor drink water, because he was mourning over the unfaithfulness of the exiles.