Deuteronomy 7:1-3

Driving Out the Nations 1When the LORD your God brings you into the land you are entering to possess and drives out before you many nations—the Hittites, Girgashites, Amorites, Canaanites, Perizzites, Hivites and Jebusites, seven nations larger and stronger than you— 2and when the LORD your God has delivered them over to you and you have defeated them, then you must destroy them totally. The Hebrew term refers to the irrevocable giving over of things or persons to the Lord, often by totally destroying them; also in verse 26. Make no treaty with them, and show them no mercy. 3Do not intermarry with them. Do not give your daughters to their sons or take their daughters for your sons,