Deuteronomy 12:2-4

Ye shall surely destroy all the places wherein the nations that ye shall dispossess served their gods, upon the high mountains, and upon the hills, and under every green tree: and ye shall break down their altars, and dash in pieces their pillars, and burn their Asherim with fire; and ye shall hew down the graven images of their gods; and ye shall destroy their name out of that place. Ye shall not do so unto Jehovah your God.