Musar к Мишлей 16:5

Arrogant people are disgusting in the eyes of the Lord, as it is said: "Every one that is proud in heart is an abomination to the Lord" (Prov. 16:5). And such a one is easily surrendered into the power of his evil impulse, for God's help is not with him since he is abominable to the Lord. And even though he does not lord it over any man by word or deed but in his heart alone, he is called "abominable" for it says, "Every one that is proud in heart is an abomination to the Lord," that is to say, even if he has no arrogance except in his heart.

Our Rabbis said: "Every man who is impudent or proud of spirit it is as though he were an idolator" (Sotah 4b), for it is written, "Every one that is proud in heart is an abomination to the Lord" (Prov. 16:5) and it is written there: "You must not bring an abhorrent thing (idol) into your house …" (Deut. 7:26). And there are those who say it is as though he violated all the laws against sexual license, for it is written: "For all these abominations were done by the people who were in the land before you and the land became defiled …" (Lev. 18:27). And there are those who say, "It is as though he built a place for idolatry." And they said in Sotah 5a, "Every man who is arrogant of spirit becomes less in the end as it is said: 'They are exalted for a little while' (Job 24:25). And such a one is deserving to be hewn down like a grove planted for idol worship, as it is said: 'And the high ones of stature shall be hewn down' (Is. 10:33). And his dust shall not awaken and the Spirit of God laments over him. The Holy One Blessed be He, said, 'I and he cannot live in the same world,' as it is said: 'Whoso is haughty of eye and proud of heart, him will I not suffer'" (Ps. 101:5).

And pride causes several transgressions and amplifies the impulse of a man's heart against him, as it is stated (Deuteronomy 8:14), "And your heart grow haughty and you forget the Lord your God." And it is [also] stated (Proverbs 21:4), "Haughty looks, a proud heart - the tillage of the evildoers' sin." Its explanation is: Pride is the tillage of evildoers, for the sins grow from it; as it was stated, "And your heart grow haughty and you forget." And it is [also] stated (Psalms 10:2), "The wicked in his arrogance hounds the lowly." And it is [further] stated (Psalms 31:19), "that speak haughtily against the righteous with arrogance." And it is [also] stated (Ezekiel 32:24), "who struck terror in the land of the living." And just like people make a tillage in the field in order to plant seeds and to harvest much produce, so do the evildoers make pride into a tillage in their hearts, and seed it with their evil thoughts to produce and to grow sins. Metaphorically speaking, these are the fruit of their thoughts - like the prophet stated (Hosea 10:4), "this judgment springs up like poison weeds, etc." And the explanation of "sin" (above in Proverbs 21:4) is, the tillage of the evildoers is the tillage of sin. And all [mention of] sin is [actually] plural, like (in Jeremiah 17:1), "The sin of Judah." Or (alternatively), its explanation is "and sin," like in (Habakkuk 3:11), "Sun, moon" (which means, sun and moon). And the understanding is - beyond [the fact] that pride causes sins, the trait itself is a sin, as it is stated (Proverbs 16:5), "Every haughty person is an abomination to the Lord." And a proud person will be given over to his impulse; for God does not help him, since he is "an abomination to the Lord."