1 Samuel 26:8-11

8Then said Abishai to David, God hath delivered thine enemy into thine hand this day: now therefore let me smite him, I pray thee, with the spear even to the earth at once, and I will not smite him the second time.1

9And David said to Abishai, Destroy him not: for who can stretch forth his hand against Yhwh's anointed, and be guiltless?

10David said furthermore, As Yhwh liveth, Yhwh shall smite him; or his day shall come to die; or he shall descend into battle, and perish.

11Yhwh forbid that I should stretch forth mine hand against Yhwh's anointed: but, I pray thee, take thou now the spear that is at his head, and the cruse of water, and let us go.