1 Samuel 26:11-12

111The Lord forbid that I would reach out with my hand against the Lord’s anointed! But now please take the spear that is at his head and the jug of water, and let’s go.” 12So David took the spear and the jug of water that were at Saul’s head, and they left; and no one saw or knew about it, nor did anyone awaken, for they were all asleep, because 2a deep sleep from the Lord had fallen on them.