Deuteronomy 20:16-17

16But of the cities of these peoples which Jehovah thy 1God giveth thee for an inheritance, thou shalt save alive nothing that breatheth,

17but shalt utterly devote them to destruction, the Hittites and the Amorites, the Canaanites and the Perizzites, the Hivites and the Jebusites, as Jehovah thy 2God hath commanded thee;