1 Samuel 26:13

10 And David said, By the living Lord, the Lord will send destruction on him; the natural day of his death will come, or he will go into the fight and come to his end.

11 Never will my hand be stretched out against the man marked with the holy oil; but take the spear which is by his head and the vessel of water, and let us go.

12 So David took the spear and the vessel of water from Saul's head; and they got away without any man seeing them, or being conscious of their coming, or awaking; for they were all sleeping because a deep sleep from the Lord had come on them.

13 Then David went over to the other side, and took his place on the top of a mountain some distance away, with a great space between them;

14 And crying out to the people and to Abner, the son of Ner, David said, Have you no answer to give, Abner? Then Abner said, Who is that crying out to the king?

15 And David said to Abner, Are you not a man of war? is there any other like you in Israel? why then have you not kept watch over your lord the king? for one of the people came in to put the king your lord to death.

16 What you have done is not good. By the living Lord, death is the right fate for you, because you have not kept watch over your lord, the man on whom the Lord has put the holy oil. Now see, where is the king's spear, and the vessel of water which was by his head?