Deuteronomy 7:25

7:25 You must burn the images of their gods, but do not covet the silver and gold that covers them so much that you take it for yourself and thus become ensnared by it; for it is abhorrent to the Lord your God.

Deuteronomy 13:16

13:16 You must gather all of its plunder into the middle of the plaza and burn the city and all its plunder as a whole burnt offering to the Lord your God. It will be an abandoned ruin forever – it must never be rebuilt again.