David added, “As surely as the LORD lives, the LORD Himself will strike him down; either his day will come and he will die, or he will go into battle and perish.
KJV
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.
ASV
And David said, As Jehovah liveth, Jehovah will smite him; or his day shall come to die; or he shall go down into battle and perish.