Deuteronomy 13:13-15

Living Bible

^12-14 “If you ever hear it said about one of the cities of Israel that some worthless rabble have led their fellow citizens astray with the suggestion that they worship foreign gods, first check the facts to see if the rumor is true. If you find that it is, that it is certain that such a horrible thing is happening among you in one of the cities the Lord has given you, ¹⁵ you must without fail declare war against that city and utterly destroy all of its inhabitants, and even all of the cattle.