1 Samuel 26:8-11

26:8 Then 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. 26:9 And David said to Abishai, Destroy him not: for who can stretch forth his hand against the LORD’S anointed, and be guiltless? 26:10 David said furthermore, [As] the LORD liveth, the LORD shall smite him; or his day shall come to die; or he shall descend into battle, and perish. 26:11 The LORD forbid that I should stretch forth mine hand against the LORD’S anointed: but, I pray thee, take thou now the spear that [is] at his bolster, and the cruse of water, and let us go.