Deuteronomy 13:12-15

12“When you begin living in the towns the Lord your God is giving you, you may hear

13that scoundrels among you are leading their fellow citizens astray by saying, ‘Let us go worship other gods’—gods you have not known before.

14In such cases, you must examine the facts carefully. If you find that the report is true and such a detestable act has been committed among you,

15you must attack that town and completely destroy all its inhabitants, as well as all the livestock.