New Revised Standard Version
Their children come to honor, and they do not know it; they are brought low, and it goes unnoticed.

Contemporary English Version
We never live to know if our children are praised or disgraced.

New American Bible
If their children are honored, they are not aware of it; or if disgraced, they do not know about them.

Douay-Rheims Bible
Whether his children come to honour or dishonour, he shall not understand.

Whether his children come to honour or dishonour, he shall not understand.

he knoweth it not

1 Samuel 4:20 And when she was upon the point of death, they that stood about her said to her: Fear not, for thou hast borne a son. She answered them not, nor gave heed to them.

Psalm 39:6 Surely man passeth as an image: yea, and he is disquieted in vain. He storeth up: and he knoweth not for whom he shall gather these things.

Ecclesiastes 2:18,19 Again I hated all my application wherewith I had earnestly laboured under the sun, being like to have an heir after me, . . .

Ecclesiastes 9:5 For the living know that they shall die, but the dead know nothing more, neither have they a reward any more: for the memory of them is forgotten.

Isaiah 39:7,8 And of thy children, that shall issue from thee, whom thou shalt beget, they shall take away, and they shall be eunuchs in the palace of the king of Babylon. . . .

Isaiah 63:16 For thou art our father, and Abraham hath not known us, and Israel hath been ignorant of us: thou, O Lord, art our father, our redeemer, from everlasting is thy name.