'Underworld' in the Bible

And all his sons and all his daughters came to give him comfort, but he would not be comforted, saying with weeping, I will go down to the underworld to my son. So great was his father's sorrow for him.

And he said, I will not let my son go down with you; for his brother is dead and he is all I have: if evil overtakes him on the journey, then through you will my grey head go down to the underworld in sorrow.

If now you take this one from me, and some evil comes to him, you will make my grey head go down in sorrow to the underworld.

When he sees that the boy is not with us, he will come to his death, and our father's grey head will go down in sorrow to the underworld.