1 Samuel 24:8-10

David came out and shouted after him, “My lord the king!” And when Saul looked around, David bowed low before him. Then he shouted to Saul, “Why do you listen to the people who say I am trying to harm you? This very day you can see with your own eyes it isn’t true. For the LORD placed you at my mercy back there in the cave. Some of my men told me to kill you, but I spared you. For I said, ‘I will never harm the king—he is the LORD’s anointed one.’