1 Samuel 27:6

Then 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, who has been with me these days, or rather these years, and I have found no fault in him from the day he deserted to me to this day?”

But the commanders of the Philistines were angry with him, and the commanders of the Philistines said to him, “Make the man return, that he may return to his place where you have assigned him, and do not let him go down to battle with us, or in the battle he may become an adversary to us. For with what could this man make himself acceptable to his lord? Would it not be with the heads of these men?

Then it happened when David and his men came to Ziklag on the third day, that the Amalekites had made a raid on the Negev and on Ziklag and had struck Ziklag and burned it with fire;

Now these are the ones who came to David at Ziklag, while he was still restricted because of Saul the son of Kish; and they were among the mighty men who helped him in war.