Deuteronomy 13:13-16

13They may be turning the other people in their town away from the Lord. They may be saying, ‘We should worship other gods!’ Those are gods that you never knew about before.

14Then you must check carefully that the news is true. You must discover whether people really have done this wicked thing in one of your towns.

15If the news is true, you must attack that town. You must completely destroy it. Kill all the people and the animals.

16You must put all the valuable things in a heap in the town's public place. Then burn down the whole town as an offering to the Lord your God. Leave the town as a heap of stones. Nobody must ever build it again.