1 Samuel 15:5-7

New International Version - UK

⁵ Saul went to the city of Amalek and set an ambush in the ravine. ⁶ Then he said to the Kenites, ‘Go away, leave the Amalekites so that I do not destroy you along with them; for you showed kindness to all the Israelites when they came up out of Egypt.’ So the Kenites moved away from the Amalekites.

⁷ Then Saul attacked the Amalekites all the way from Havilah to Shur, near the eastern border of Egypt.