KJV : Therefore now, LORD <03068> God <0430> of Israel <03478>, keep <08104> (8798) with thy servant <05650> David <01732> my father <01> that thou promisedst <01696> (8765) him, saying <0559> (8800), There shall not fail <03772> (8735) thee a man <0376> in my sight <06440> to sit <03427> (8802) on the throne <03678> of Israel <03478>; so <07535> that thy children <01121> take heed <08104> (8799) to their way <01870>, that they walk <03212> (8800) before <06440> me as thou hast walked <01980> (8804) before <06440> me. {fail...: Heb. be cut off unto thee a man from my sight} {so that: Heb. only if}
NASB :
NASB# : "Now<6258> therefore, O LORD<3068>, the God<430> of Israel<3478>, keep<8104> with Your servant<5650> David<1732> my father<1> that which<834> You have promised<1696> him, saying<559>, 'You shall not lack<3772> a man<376> to sit<3427> on the throne<3678> of Israel<3478>, if<518> only<7534> your sons<1121> take<8104> heed<8104> to their way<1870> to walk<1980> before<6440> Me as you have walked<1980>.'