1 Samuel 26:11-12

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.