1 Samuel 24:8-11

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. He said to Saul, “Why do you listen when people say, ‘David wants to harm you’? You have seen something with your own eyes today. The LORD put you in my power in the cave. They said I should kill you, but I was merciful. I said, ‘I won’t harm my master, because he is the LORD’s appointed king.’ My father, look at this piece of your robe in my hand! I cut off the corner of your robe, but I didn’t kill you. Now understand and know I am not planning any evil against you. I did nothing wrong to you, but you are hunting me to kill me.