His sons come to honour, and he knoweth it not - He is unacquainted with what is passing on the earth. Even should that occur which is most gratifying to a parent's heart; should his children rise to stations of honor and influence, he would not be permitted to enjoy the happiness which every father feels when his sons do well. This is suggested as one of the evils of death.
They are brought low, but he perceiveth it not of them - He is not permitted to sympathize with them, or to sustain them in their trials. This is another of the evils of death. When his children need his counsel and advice, he is not permitted to give it. He is taken away from his family, and revisits them no more.

His sons come to honor - When dead, he is equally indifferent and unconscious whether his children have met with a splendid or oppressive lot in life; for as to this world, when man dies, in that day all his thoughts perish.

His sons come to honour,.... Or "are multiplied" (s), see Nahum 3:15; their families increase like a flock, become very numerous, which was reckoned a great blessing; or "become heavy" (t); being loaded with gold and silver, with riches and honour, raised to great grandeur and dignity, and possessed of much wealth and large estates:
and he knoweth it not; the man whose countenance is changed and sent away into another world; for the dead know nothing of the affairs of this life; a good man indeed after death knows more of God and Christ, of the doctrines of grace, and mysteries of Providence; but he knows nothing of the affairs of his family he has left behind: some understand this of a man on his death bed while alive, who, when he is told of the promotion of his sons to honour, or of the increase of their worldly substance, takes no notice of it; either being deprived of his senses by the disease upon him; or through the greatness of his pains and agonies, or the intenseness of his thoughts about a future state, does not notice what is told him, nor rejoice at it; which in the time of health would have been pleasing to him: but the first sense seems best:
and they are brought low, that is, his sons; or "are diminished" (u); lessened in their numbers, one taken off after another, and so his family decreases; or they come into low circumstances of life, are reduced in the world, and brought to straits and difficulties, to want and poverty:
but he perceiveth it not of them; he is not sensible of their troubles, and so not grieved at them; see Isaiah 63:16; or when he is told of them on his death bed, he does not take notice of them, or regard them, having enough to grapple with himself, and his mind intent on his everlasting state, or carried above them in the views of the love, grace, and covenant of God; see 2-Samuel 23:5.
(s) , Sept. "multiplicabuntur", Vatablus, Bolducius. (t) "Multi vel graves sunt", Drusius; "graves erunt et onusti", Mercerus. (u) , Sept. "minuuntur, numero pauci sunt", Drusius.

One striking trait is selected from the sad picture of the severance of the dead from all that passes in the world (Ecclesiastes 9:5), namely, the utter separation of parents and children.

Knoweth not - Either is ignorant of all such events: or, is not concerned or affected with them. A dead or dying man minds not these things.