Ezra 10:10-11

10Then Ezra the priest stood up. He said to the people, ‘You have not been faithful to your God. You have married foreign wives. You have caused the whole nation of Israel to be guilty.

11Now you must agree to obey the Lord, the God that your ancestors worshipped. Turn away from your sins and do the things that please him. Make yourselves separate from the foreign people who live near you. Send away your foreign wives.’