1 Samuel 24:18-20

24:18 You have explained today how you have treated me well. The Lord delivered me into your hand, but you did not kill me. 24:19 Now if a man finds his enemy, does he send him on his way in good shape? May the Lord repay you with good this day for what you have done to me. 24:20 Now look, I realize that you will in fact be king and that the kingdom of Israel will be established in your hand.