1 Samuel 15:2-9

2This is what the Lord of armies says: ‘I will 1punish Amalek 2for what he did to Israel, in that he obstructed him on the way while he was coming up from Egypt. 3Now go and strike Amalek and 3completely destroy everything that he has, and do not spare him; but 4put to death both man and woman, child and infant, ox and sheep, camel and donkey.’”

4Then Saul summoned the people and 5counted them in 6Telaim: two hundred thousand foot soldiers and ten thousand men of Judah. 5And Saul came to the city of Amalek and set an ambush in the 7wadi. 6But Saul said to 8the Kenites, “Go, get away, go down from among the Amalekites, so that I do not destroy you along with them; for 9you showed kindness to all the sons of Israel when they went up from Egypt.” So the Kenites got away from among the Amalekites. 7Then 10Saul 11defeated the Amalekites, from 12Havilah 13going toward 14Shur, which is 15east of Egypt. 8He captured 16Agag the king of the Amalekites alive, and 17completely destroyed all the people with the edge of the sword. 9But Saul and the people 18spared Agag and the best of the sheep, the oxen, the more valuable animals, the lambs, and everything that was good, and were unwilling to destroy them completely; but everything despicable and weak, that they completely destroyed.