1 Samuel 15:1-5

1 SAMUEL also said unto Saul, The Lord sent me to anoint thee to be king over his people, over Israel: now therefore hearken thou unto the voice of the words of the Lord. 2 Thus saith the Lord of hosts, I remember that which Amalek did to Israel, how he laid wait for him in the way, when he came up from Egypt. 3 Now go and smite Amalek, and 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. 4 And Saul gathered the people together, and numbered them in Telaim, two hundred thousand footmen, and ten thousand men of Judah. 5 And Saul came to a city of Amalek, and laid wait in the valley.