Deuteronomy 7
3 Ref Do not take wives or husbands from among them; do not give your daughters to their sons, or take their daughters for your sons.
4 Ref For through them your sons will be turned from me to the worship of other gods: and the Lord will be moved to wrath against you and send destruction on you quickly.
5 Ref But this is what you are to do to them: their altars are to be pulled down and their pillars broken, and their holy trees cut down and their images burned with fire.
6 Ref For you are a holy people to the Lord your God: marked out by the Lord your God to be his special people out of all the nations on the face of the earth.