1 Samuel 27:8-11

8David and his men spent their time raiding the Geshurites, the Girzites, and the Amalekites—people who had lived near Shur, toward the land of Egypt, since ancient times.

9David did not leave one person alive in the villages he attacked. He took the sheep, goats, cattle, donkeys, camels, and clothing before returning home to see King Achish.

10“Where did you make your raid today?” Achish would ask. And David would reply, “Against the south of Judah, the Jerahmeelites, and the Kenites.”

11No one was left alive to come to Gath and tell where he had really been. This happened again and again while he was living among the Philistines.