1 Samuel 26:7-12

7That night, David and Abishai came to the troops, and Saul was lying there asleep in the inner circle of the camp with his spear stuck in the ground by his head. Abner and the troops were lying around him.

8Then Abishai said to David, “Today God has delivered your enemy to you. Let me thrust the spear through him into the ground just once. I won’t have to strike him twice!”

9But David said to Abishai, “Don’t destroy him, for who can lift a hand against the Lord’s anointed and be innocent?”

10David added, “As the Lord lives, the Lord will certainly strike him down: either his day will come and he will die, or he will go into battle and perish.

11However, as the Lord is my witness, I will never lift my hand against the Lord’s anointed. Instead, take the spear and the water jug by his head, and let’s go.”

12So David took the spear and the water jug by Saul’s head, and they went their way. No one saw them, no one knew, and no one woke up; they all remained asleep because a deep sleep from the Lord came over them.