Deuteronomy 13:12 - 13:18
12 “If you hear in one of your cities, which Yahweh your God is giving you to live in, anyone saying that 13 some vile men have gone out from among you and have driven the inhabitants of their city astray, saying, ‘Let us go and serve other gods’ (whom you have not known), 14 then you shall inquire and search out and ask thoroughly. Behold, if it is true and the matter is confirmed, that this abomination has been done among you, 15 you shall surely strike the inhabitants of that city with the edge of the sword, devoting it to destruction and all that is in it and its cattle with the edge of the sword. 16 Then you shall gather all its spoil into the middle of its open square and burn the city and all its spoil with fire as a whole burnt offering to Yahweh your God; and it shall be a ruin forever. It shall never be rebuilt. 17 Now nothing from that which is devoted to destruction shall cling to your hand, in order that Yahweh may turn from His burning anger and grant compassion to you and show compassion to you and make you multiply, just as He has sworn to your fathers, 18 if you will listen to the voice of Yahweh your God, keeping all His commandments which I am commanding you today, and doing what is right in the sight of Yahweh your God.