Even if he lives a thousand years twice over but fails to enjoy his prosperity. Do not all go to the same place?
NIV
Even though he lives a thousand years twice over and yet has seen no good and experienced no enjoyment--do not all go to one place [the place of the dead]?
AMP
Yea, though he live a thousand years twice told, yet hath he seen no good: do not all go to one place?
KJV
"I am coming to you now, but I say these things while I am still in the world, so that they may have the full measure of my joy within them."
NIV
And now I am coming to You; I say these things while I am still in the world, so that My joy may be made full and complete and perfect in them [that they may experience My delight fulfilled in them, that My enjoyment may be perfected in their own souls, that they may have My gladness within them, filling their hearts].
AMP
And now come I to thee; and these things I speak in the world, that they might have my joy fulfilled in themselves.
KJV