1 Samuel 26:14-16

14And 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?

15And 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.

16This 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.1