1 Samuel 15:1-3

American Standard Version

15 And Samuel said unto Saul, Jehovah sent me to anoint thee to be king over his people, over Israel: now therefore hearken thou unto the voice of the words of Jehovah. ² Thus saith Jehovah of hosts, I ^[a]have marked that which Amalek did to Israel, how he set himself against him in the way, when he came up out of Egypt. ³ Now go and smite Amalek, and ^[b]utterly destroy all that they have, and spare them not; but slay both man and woman, infant and suckling, ox and sheep, camel and ass.