1 Samuel 29:6-7

6So Achish called David and said to him, “As surely as the Lord lives, you have been reliable, and I would be pleased to have you serve with me in the army. From the day you came to me until today, I have found no fault in you, but the rulers don’t approve of you.

7Now turn back and go in peace; do nothing to displease the Philistine rulers.”