Deuteronomy 20:16-18

CAB(i) 16 Of these you shall not take anything alive; 17 but you shall surely curse them, the Hittite, the Amorite, the Canaanite, the Perizzite, the Hivite, the Jebusite, and the Girgashite; as the Lord your God commanded you: 18 that they may not teach you to do all their abominations, which they did to their gods, and so you should sin before the Lord your God.