ESV: And David said, "As the Lord lives, the Lord will strike him, or his day will come to die, or he will go down into battle and perish.
NIV: As surely as the Lord lives," he said, "the Lord himself will strike him, or his time will come and he will die, or he will go into battle and perish.
NASB: David also said, 'As the Lord lives, the Lord certainly will strike him, or his day will come that he dies, or he will go down in battle and perish.
CSB: David added, "As the Lord lives, the Lord will certainly strike him down: either his day will come and he will die, or he will go into battle and perish.
NLT: Surely the Lord will strike Saul down someday, or he will die of old age or in battle.
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.
NKJV: David said furthermore, “ As the Lord lives, the Lord shall strike him, or his day shall come to die, or he shall go out to battle and perish.