Deuteronomy 7:3-5

Darby Translation

³ And thou shalt make no marriages with them: thy daughter thou shalt not give unto his son, nor take his daughter for thy son;

⁴ for he will turn away thy son from following me, and they will serve other gods, and the anger of Jehovah will be kindled against you, and he will destroy thee quickly.

⁵ But thus shall ye deal with them: ye shall break down their altars, and shatter their statues, and hew down their Asherahs, and burn their graven images with fire.