This is no arbitrary sentence. The fault was all along their own. The fruit of their own ways is death.

They hated knowledge - This argues the deepest degree of intellectual and moral depravity.

For that they hated knowledge,.... Spiritual and evangelical; the knowledge of the Scriptures, of the promises and prophecies of them respecting the Messiah, though they were called upon and exhorted to "search" them; the knowledge of the Messiah, his person, offices, and grace; the knowledge of his Gospel, and the doctrines of it; see Proverbs 1:22;

and did not choose the fear of the Lord; which is the beginning of knowledge, Proverbs 1:7; instead of choosing, they cast off the fear of the Lord; and by their rejection of the Messiah, and their usage of him, it plainly appeared that the fear of God was not before their eyes nor upon their hearts; nor did they choose or care for the pure, spiritual, and evangelical worship of God, introduced in the Gospel dispensation; the ordinances of Christ they did not choose to submit to; and would neither go into he kingdom of God or Gospel church state themselves, nor suffer those that were entering to go in, Matthew 23:13; but rather chose their superstition and will worship, according to the tradition of the elders, by which they made the word and worship of God of none effect.

For that they hated knowledge, and did not choose the fear of the LORD:

1:29 Knowledge - The practical knowledge of God and of their duty.

Margin fear

Also; Prov 1:7. See Scofield Note: "Ps 19:9".

29, 30. The sinner's infatuated rejection brings his ruin.

1:20-33 Solomon, having showed how dangerous it is to hearken to the temptations of Satan, here declares how dangerous it is not to hearken to the calls of God. Christ himself is Wisdom, is Wisdoms. Three sorts of persons are here called by Him: 1. Simple ones. Sinners are fond of their simple notions of good and evil, their simple prejudices against the ways of God, and flatter themselves in their wickedness. 2. Scorners. Proud, jovial people, that make a jest of every thing. Scoffers at religion, that run down every thing sacred and serious. 3. Fools. Those are the worst of fools that hate to be taught, and have a rooted dislike to serious godliness. The precept is plain; Turn you at my reproof. We do not make a right use of reproofs, if we do not turn from evil to that which is good. The promises are very encouraging. Men cannot turn by any power of their own; but God answers, Behold, I will pour out my Spirit unto you. Special grace is needful to sincere conversion. But that grace shall never be denied to any who seek it. The love of Christ, and the promises mingled with his reproofs, surely should have the attention of every one. It may well be asked, how long men mean to proceed in such a perilous path, when the uncertainty of life and the consequences of dying without Christ are considered? Now sinners live at ease, and set sorrow at defiance; but their calamity will come. Now God is ready to hear their prayers; but then they shall cry in vain. Are we yet despisers of wisdom? Let us hearken diligently, and obey the Lord Jesus, that we may enjoy peace of conscience and confidence in God; be free from evil, in life, in death, and for ever.