1 Samuel 29:2-3

2And the governors of the Philistines were proceeding on, leading hundreds and thousands, and 1David and his men were proceeding in the back with Achish.

3Then 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 the king of Israel, 2who has been with me these days, or rather these years, and 3I have found nothing at all suspicious in him since the day he 4deserted to me to this day?”