1 Samuel 27:8-9

8Now David and his men went up and raided the Geshurites, the Girzites, and the Amalekites. (From ancient times these people had inhabited the land extending to Shur and Egypt.) 9Whenever David attacked a territory, he did not leave a man or woman alive, but he took the flocks and herds, the donkeys, camels, and clothing.

Then he would return to Achish,