I Samuel 26:7-14, 21-25

So David and Abishai came to the people by night; and there Saul lay sleeping within the camp, with his spear stuck in the ground by his head. And Abner and the people lay all around him. Then Abishai said to David, “God has delivered your enemy into your hand this day. Now therefore, please, let me strike him at once with the spear, right to the earth; and I will not have to strike him a second time!” But David said to Abishai, “Do not destroy him; for who can stretch out his hand against the LORD’s anointed, and be guiltless?” David said furthermore, “As the LORD lives, the LORD shall strike him, or his day shall come to die, or he shall go out to battle and perish. The LORD forbid that I should stretch out my hand against the LORD’s anointed. But please, take now the spear and the jug of water that are by his head, and let us go.” So David took the spear and the jug of water by Saul’s head, and they got away; and no man saw or knew it or awoke. For they were all asleep, because a deep sleep from the LORD had fallen on them. Now David went over to the other side, and stood on the top of a hill afar off, a great distance being between them. And David called out to the people and to Abner the son of Ner, saying, “Do you not answer, Abner?” Then Abner answered and said, “Who are you, calling out to the king?”

Then Saul said, “I have sinned. Return, my son David. For I will harm you no more, because my life was precious in your eyes this day. Indeed I have played the fool and erred exceedingly.” And David answered and said, “Here is the king’s spear. Let one of the young men come over and get it. May the LORD repay every man for his righteousness and his faithfulness; for the LORD delivered you into my hand today, but I would not stretch out my hand against the LORD’s anointed. And indeed, as your life was valued much this day in my eyes, so let my life be valued much in the eyes of the LORD, and let Him deliver me out of all tribulation.” Then Saul said to David, “May you be blessed, my son David! You shall both do great things and also still prevail.” So David went on his way, and Saul returned to his place.