1 Samuel 24:6-7
24:6 He said to his men, “May the Lord keep me far away from doing such a thing to my lord, who is the Lord’s chosen one, by extending my hand against him. After all, he is the Lord’s chosen one.”
24:7 David restrained his men with these words and did not allow them to rise up against Saul. Then Saul left the cave and started down the road.