1 Samuel 26:21-23

21 Then Saul said, I have sinned. Return, my son David, for I will no more do thee harm because my life was precious in thine eyes this day. Behold, I have played the fool, and have erred exceedingly.

22 And David answered and said, Behold the spear, O king! Let then one of the young men come over and fetch it.

23 And LORD will render to every man his righteousness and his faithfulness, inasmuch as LORD delivered thee into my hand today, and I would not put forth my hand against LORD's anointed.