1 Samuel 24:16-22

When David finished saying these words, Saul asked, “Is that your voice, David my son?” And he cried loudly. He said, “You are a better man than I am. You have been good to me, but I have done wrong to you. You told me what good things you did. The LORD handed me over to you, but you did not kill me. People don’t normally let an enemy get away like this, do they? May the LORD reward you because you were good to me today. I know you will surely be king, and you will rule the kingdom of Israel. Now swear to me by the LORD that you will not kill my descendants and that you won’t wipe out my name from my father’s family.” So David made the promise to Saul. Then Saul went back home, and David and his men went up to their hideout.