1 Samuel 26:9-17, 24

But David said to Abishai, “Do not kill him, for who can put out his hand against the LORD’S anointed [king] and be guiltless (innocent)?” David also said, “As the LORD lives, most certainly the LORD will strike him [in His own time and way], or his day will come and he will die, or he will go down into battle and be carried off [dead]. The LORD forbid that I would put out my hand against the LORD’S anointed; but now take the spear that is by his head and the jug of water, and let us go.” So David took the spear and the jug of water from beside Saul’s head, and they left, and no one saw or knew nor did anyone awaken, because they were all sound asleep, for a deep sleep from the LORD had fallen on them. Then David crossed over to the other side and stood on the top of the mountain at a distance, with a large area between them. David called to the army and to Abner the son of Ner, “Will you not answer, Abner?” Abner replied, “Who are you who calls [and disturbs] the king?” David said to Abner, “Are you not a [brave] man? Who is like you in Israel? Why then have you not guarded your lord the king? For one of the people came [into your camp] to kill the king your lord. This thing that you have done is not good. As the LORD lives, you surely deserve to die, because you have not guarded your lord, the LORD’S anointed. And now, see where the king’s spear is, and the jug of water that was by his head.” Then Saul recognized David’s voice and said, “Is this your voice, my son David?” And David said, “It is my voice, my lord the king!”

Now behold, just as your life was precious in my sight this day, so let my life be precious in the sight of the LORD, and may He rescue me from all distress.”