The fear of the LORD is to hate evil: pride, and arrogancy, and the evil way, and the froward mouth, do I hate.
The fear of the Lord (is) to hate evil. Here Wisdom gives a sample of her blessed teachings. They consist not in mere abstruse speculations, but in practical inculcation of the fear of the Lord (Proverbs 9:10) as her fundamental principle, and its consequence, the hatred of evil (Proverbs 16:6). He who reverently fears God does not approve, excuse, or admit evil, but instinctively and earnestly loathes it in every form, and even shrinks from the appearance of it (1 Thessalonians 5:22). The hatred of evil includes the love of goodness. The godly avoid evil and do good, not merely from habit, education, the hope of reward, or the fear of punishment, but from hatred of evil and love of goodness
(T. Cartwright).
Pride, and arrogancy - kindred Hebrew terms ( gee'aah (H1344), gaa'own (H1347)), to express pride of every kind and however manifested-pride of heart, mouth, dress, or acts.
And the evil way, and the froward mouth. As pride is mainly in the mind, so "the evil way" is in action; "the froward mouth" in speaking-namely, it speaks things at variance with the Word of God, with truth, and with love. These all are specimens of "evil" which "the fear of the Lord" teaches us to "hate." For the sum of piety consists in hating and loving the same things as God hates and loves. "Pride" stands first, as being most opposed to the fear of the Lord, which is associated always with humility. The more we fear the exalted majesty of God, the more we understand our own feebleness, want, and misery (Bayne). Paul, in raising the structure of good works, lays 'lowliness' or humility as the foundation and beginning of all (Ephesians 4:2, etc.; cf. Sir 10:12-13 , 'The beginning of pride is when one departeth from God, and his heart is turned away from his Maker: for pride is the beginning of sin.'