The LORD forbid that I should stretch out my hand against the LORD's anointed. But please, take now the spear and the jug of water that are by his head, and let us go."
1 Samuel 26:11
Surrounding context
26:10 David said furthermore, "As the LORD lives, the LORD shall strike him, or his day shall come to die, or he shall go out to battle and perish.
26:11 The LORD forbid that I should stretch out my hand against the LORD's anointed. But please, take now the spear and the jug of water that are by his head, and let us go."
26:12 So David took the spear and the jug of water by Saul's head, and they got away; and no man saw or knew it or awoke. For they were all asleep, because a deep sleep from the LORD had fallen on them.