1 Samuel 26:5-12

⁵ And David arose and came to the place where Saul had encamped; and David beheld the place where Saul lay, and Abner the son of Ner, the captain of his host; and Saul lay within the wagon-defence, and the people were encamped round about him.

⁶ And David spake and said to Ahimelech the Hittite, and to Abishai the son of Zeruiah, Joab's brother, saying, Who will go down with me to Saul to the camp? And Abishai said, I will go down with thee. ⁷ And David and Abishai came to the people by night, and behold, Saul lay sleeping within the wagon-defence, and his spear stuck in the ground at his head; and Abner and the people lay round about him. ⁸ And Abishai said to David, God has delivered thine enemy into thy hand this day; and now let me smite him, I pray thee, with the spear, even to the ground once, and I will not do it the second time. ⁹ And David said to Abishai, Destroy him not; for who can stretch forth his hand against Jehovah's anointed, and be guiltless? ¹⁰ And David said, [As] Jehovah liveth, Jehovah will surely smite him; either his day shall come to die, or he shall descend into battle and perish. ¹¹ Jehovah forbid that I should stretch forth my hand against Jehovah's anointed! But now take, I pray thee, the spear that is at his head, and the cruse of water, and let us go. ¹² And David took the spear and the cruse of water from Saul's head; and they went away, and no man saw [it], and none knew [it], and none awaked, for they were all asleep; for a deep sleep from Jehovah had fallen upon them.