If you take this one also, and anything happens to him on the way, you will lead my grey hairs down with grief to the grave.
Other versions
King James Version
And if ye take this also from me, and mischief befall him, ye shall bring down my gray hairs with sorrow to the grave.English Standard Version
If you take this one also from me, and harm happens to him, you will bring down my gray hairs in evil to Sheol.'New International Version
If you take this one from me too and harm comes to him, you will bring my gray head down to the grave in misery.'