1 Samuel 26:14 (KJV)

So David took the spear and the cruse of water from Saul’s bolster; and they gat them away, and no man saw it, nor knew it, neither awaked: for they were all asleep; because a deep sleep from the Lord was fallen upon them.

Then David went over to the other side, and stood on the top of an hill afar off; a great space being between them:

And David cried to the people, and to Abner the son of Ner, saying, Answerest thou not, Abner? Then Abner answered and said, Who art thou that criest to the king?

And David said to Abner, Art not thou a valiant man? and who is like to thee in Israel? wherefore then hast thou not kept thy lord the king? for there came one of the people in to destroy the king thy lord.

This thing is not good that thou hast done. As the Lord liveth, ye are worthy to die, because ye have not kept your master, the Lord’s anointed. And now see where the king’s spear is, and the cruse of water that was at his bolster.