1 Samuel 29:3 ESV

3 the commanders of the Philistines said, "What are these Hebrews doing here?" And Achish said to the commanders of the Philistines, "Is this not David, the servant of Saul, king of Israel, who has been with me 1now for days and years, and since he deserted to me 2I have found no fault in him to this day."

References for 1 Samuel 29:3