1 Samuel 26:5-12

5And 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.

6And 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.

7And 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.

8And Abishai said to David, 1God 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.

9And David said to Abishai, Destroy him not; for who can stretch forth his hand against Jehovah's anointed, and be guiltless?

10And 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.

11Jehovah 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.

12And 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.