1 Samuel 26:11

Then Abishai said to David, “God has delivered up your enemy into your hand today. Now therefore please let me strike him with the spear to the earth at one stroke, and I will not strike him the second time.”

David said to Abishai, “Don’t destroy him, for who can stretch out his hand against the LORD’s anointed, and be guiltless?”

David said, “As the LORD lives, the LORD will strike him; or his day shall come to die, or he shall go down into battle and perish.

So David took the spear and the jar of water from Saul’s head, and they went away. No man saw it, or knew it, nor did any awake; for they were all asleep, because a deep sleep from the LORD had fallen on them.

Then David went over to the other side, and stood on the top of the mountain far away, a great space being between them;

and David cried to the people, and to Abner the son of Ner, saying, “Don’t you answer, Abner?”

Then Abner answered, “Who are you who calls to the king?”