1 Samuel 15:4-6

So Saul summoned the people and numbered them at Telaim—200,000 foot soldiers and 10,000 men of Judah. Saul came to the city of Amalek and set an ambush in the valley. Saul said to the Kenites, “Go, leave, go down from the Amalekites, so that I do not destroy you along with them; for you showed kindness to all the Israelites when they went up from Egypt.” So the Kenites departed from among the Amalekites.