1 Samuel 24:4-8

The men said to David, “Today is the day the LORD spoke of when he said, ‘I will give your enemy over to you. Do anything you want with him.’ ” Then David crept up to Saul and quietly cut off a corner of Saul’s robe. Later David felt guilty because he had cut off a corner of Saul’s robe. He said to his men, “May the LORD keep me from doing such a thing to my master! Saul is the LORD’s appointed king. I should not do anything against him, because he is the LORD’s appointed king!” David used these words to stop his men; he did not let them attack Saul. Then Saul left the cave and went his way. When David came out of the cave, he shouted to Saul, “My master and king!” Saul looked back, and David bowed facedown on the ground.