Deuteronomy 7:3-5

Neither shalt thou make marriages with them, neither giue thy daughter vnto his sonne, nor take his daughter vnto thy sonne.

For they wil cause thy sonne to turne away from me, and to serue other gods: then will the wrath of the Lord waxe hote against you and destroy thee suddenly.

But thus ye shall deale with them, Ye shall ouerthrowe their altars, and breake downe their pillars, and ye shall cut downe their groues, and burne their grauen images with fire.