Deuteronomy 7:2-4

7:2 And when the LORD thy God shall deliver them before thee; thou shalt smite them, [and] utterly destroy them; thou shalt make no covenant with them, nor shew mercy unto them: 7:3 Neither shalt thou make marriages with them; thy daughter thou shalt not give unto his son, nor his daughter shalt thou take unto thy son. 7:4 For they will turn away thy son from following me, that they may serve other gods: so will the anger of the LORD be kindled against you, and destroy thee suddenly.

Deuteronomy 7:16

7:16 And thou shalt consume all the people which the LORD thy God shall deliver thee; thine eye shall have no pity upon them: neither shalt thou serve their gods; for that [will be] a snare unto thee.

Deuteronomy 7:25-26

7:25 The graven images of their gods shall ye burn with fire: thou shalt not desire the silver or gold [that is] on them, nor take [it] unto thee, lest thou be snared therein: for it [is] an abomination to the LORD thy God. 7:26 Neither shalt thou bring an abomination into thine house, lest thou be a cursed thing like it: [but] thou shalt utterly detest it, and thou shalt utterly abhor it; for it [is] a cursed thing.