Ezra 8:28

8:28 Then I said to them, “You are holy to the Lord, just as these vessels are holy. The silver and the gold are a voluntary offering to the Lord, the God of your fathers.

Ezra 10:10

10:10 Then Ezra the priest stood up and said to them, “You have behaved in an unfaithful manner by taking foreign wives! This has contributed to the guilt of Israel.