Deuteronomy 20:17
"But thou shalt utterly destroy them; namely, the Hittites, and the Amorites, the Canaanites, and the Perizzites, the Hivites, and the Jebusites; as the LORD thy God hath commanded thee:"
Cross References (ranked by relevance)
Jeremiah 48:10
Cursed be he that doeth the work of the LORD deceitfully, and cursed be he that keepeth back his sword from blood.
Revelation 19:18
That ye may eat the flesh of kings, and the flesh of captains, and the flesh of mighty men, and the flesh of horses, and of them that sit on them, and the flesh of all men, both free and bond, both small and great.