Ezra 10:10-12

Then Ezra the priest stood up and said to them, “You have been unfaithful and have married foreign wives adding to the guilt of Israel. Now therefore, make confession to the LORD God of your fathers and do His will; and separate yourselves from the peoples of the land and from the foreign wives.” Then all the assembly replied with a loud voice, “That’s right! As you have said, so it is our duty to do.