1 Samuel 29:2-3

2As the Philistine lords (governors) were proceeding on [marching] by hundreds and by thousands, and David and his men were proceeding on in the rear with Achish [the king of Gath],

3the Philistine commanders [having noticed David] said, “What are these Hebrews doing here?” Achish said to the Philistine commanders, “Is this not David, the servant of Saul king of Israel, who has been with me these days and years, and I have found no fault in him from the day he deserted to me to this day?”