1 Samuel 26:8-10

King James Version

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.

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

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.