Deuteronomy 20:17-18

Expanded Bible

¹⁷ ·Completely destroy [Devote to the Lord; Josh. 6:17] these people: the Hittites, Amorites, Canaanites, Perizzites, Hivites, and Jebusites, as the Lord your God has commanded. ¹⁸ Otherwise, they will teach you what they do for their gods, and if you do these ·hateful [detestable; abhorrent; abominable] things, you will sin against the Lord your God.