1 Samuel 26:7-14, 21-25

So David and Abishai came to the people by night, and behold, Saul lay sleeping inside the circle of the camp with his spear stuck in the ground at his head; and Abner and the people were lying around him. Then Abishai said to David, “Today God has delivered your enemy into your hand; now therefore, please let me strike him with the spear to the ground with one stroke, and I will not strike him the 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 without guilt?” David also said, “As the LORD lives, surely the LORD will strike him, or his day will come that he dies, or he will go down into battle and perish. The LORD forbid that I should stretch out my hand against the LORD’S anointed; but now please take the spear that is at his head and the jug of water, and let us go.” So David took the spear and the jug of water from beside Saul’s head, and they went away, but no one saw or knew it, nor did any awake, for they were all asleep, because a sound sleep from the LORD had fallen on them. Then David crossed over to the other side and stood on top of the mountain at a distance with a large area between them. David called to the people and to Abner the son of Ner, saying, “Will you not answer, Abner?” Then Abner replied, “Who are you who calls to the king?”

Then Saul said, “I have sinned. Return, my son David, for I will not harm you again because my life was precious in your sight this day. Behold, I have played the fool and have committed a serious error.” David replied, “Behold the spear of the king! Now let one of the young men come over and take it. The LORD will repay each man for his righteousness and his faithfulness; for the LORD delivered you into my hand today, but I refused to stretch out my hand against the LORD’S anointed. Now behold, as your life was highly valued in my sight this day, so may my life be highly valued in the sight of the LORD, and may He deliver me from all distress.” Then Saul said to David, “Blessed are you, my son David; you will both accomplish much and surely prevail.” So David went on his way, and Saul returned to his place.