American Standard Version
Now therefore, O Jehovah, the God of Israel, keep with thy servant David my father that which thou hast promised him, saying, There shall not fail thee a man in my sight to sit on the throne of Israel, if only thy children take heed to their way, to walk before me as thou hast walked before me.

Amplified® Bible
Therefore now, O Lord, the God of Israel, keep with Your servant David my father what You promised him when You said, There shall not fail you a man before Me to sit on the throne of Israel, if only your children take heed to their way, that they walk before Me as you have done.

Contemporary English Version
LORD God of Israel, you promised my father that someone from his family would always be king of Israel, if they do their best to obey you, just as he did.

Darby English Version
And now, Jehovah, God of Israel, keep with thy servant David my father that which thou hast promised him, saying, There shall not fail thee a man in my sight to sit on the throne of Israel, if only thy sons take heed to their way, to walk before me as thou hast walked before me.

Good News Bible
And now, LORD God of Israel, I pray that you will also keep the other promise you made to my father when you told him that there would always be one of his descendants ruling as king of Israel, provided they obeyed you as carefully as he did.

King James Version
Therefore now, LORD God of Israel, keep with thy servant David my father that thou promisedst him, saying, There shall not fail thee a man in my sight to sit on the throne of Israel; so that thy children take heed to their way, that they walk before me as thou hast walked before me.

New American Standard Bible
"Now therefore, O LORD, the God of Israel, keep with Your servant David my father that which You have promised him, saying, `You shall not lack a man to sit on the throne of Israel, if only your sons take heed to their way to walk before Me as you have walked.'

New International Version
"Now LORD, God of Israel, keep for your servant David my father the promises you made to him when you said, 'You shall never fail to have a man to sit before me on the throne of Israel, if only your sons are careful in all they do to walk before me as you have done.'

New King James Version
Therefore, LORD God of Israel, now keep what You promised Your servant David my father, saying, ‘You shall not fail to have a man sit before Me on the throne of Israel, only if your sons take heed to their way, that they walk before Me as you have walked before Me.’

N.A.S.B. in E-Prime
"Now therefore, O LORD, the God of Israel, keep with Your servant David my father that which You have promised him, saying, 'You shall not lack a man to sit on the throne of Israel, if only your sons take heed to their way to walk before Me as you have walked.'

Revised Standard Version
Now therefore, O LORD, God of Israel, keep with thy servant David my father what thou hast promised him, saying, 'There shall never fail you a man before me to sit upon the throne of Israel, if only your sons take heed to their way, to walk before me as you have walked before me.'

Young's Literal Translation
`And now, Jehovah, God of Israel, keep for Thy servant David my father that which Thou spakest to him, saying, There is not cut off to thee a man from before Me, sitting on the throne of Israel -- only, if thy sons watch their way, to walk before Me as thou hast walked before Me.

New English Translation
Now, O Lord, God of Israel, keep the promise you made to your servant, my father David, when you said, ‘You will never fail to have a successor ruling before me on the throne of Israel,¹ provided that your descendants watch their step and serve me as you have done.’²