1 Samuel 15:3-7

15:3 So go now and strike down the Amalekites. Destroy everything that they have. Don’t spare them. Put them to death – man, woman, child, infant, ox, sheep, camel, and donkey alike.’”

15:4 So Saul assembled the army and mustered them at Telaim. There were 200,000 foot soldiers and 10,000 men of Judah. 15:5 Saul proceeded to the city of Amalek, where he set an ambush in the wadi. 15:6 Saul said to the Kenites, “Go on and leave! Go down from among the Amalekites! Otherwise I will sweep you away with them! After all, you were kind to all the Israelites when they came up from Egypt.” So the Kenites withdrew from among the Amalekites.

15:7 Then Saul struck down the Amalekites all the way from Havilah to Shur, which is next to Egypt.