Midras Amsal 16:5: Ein Yaakov (Glick Edition), Devarim Rabbah, Mekhilta DeRabbi Yishmael & Bamidbar Rabbah

R. Chisda said in the name of Mar Ukba: "Every man who possesseth haughtiness, the Holy One, praised be He! says concerning him: 'I and he cannot live in the same world,' as it is said (Ib. 101, 5) Who slandereth in secret his neighbor, him will I destroy; Whoso is proud of eye, and haughty of heart, him could I not bear." Do not read Otho [him], but read Itho [with him.] But others, however, explain the above passage to refer to tale-bearers, as it is said. Whoso slandereth in secret his neighhor. R. Alexanderi said: "Whoever possesses haughtiness, even in the slightest degree, it shall cause his downfall, as it is said (Is. 57, 20) But the wicked are like the troubled sea; jar it can never be at rest. If the sea, which contains so many quarts of water, is nevertheless stirred up by the slightest breeze, how much more so should slight assumption affect a man in whom there is only one quart of blood?" R. Chiya b. Ashi said in the name of Rab: "A scholar should possess one-eighth of an eighth (one-sixty-fourth) of pride." R. Huna, the son of R. Joshua, said: "This befits a scholar like the ears of the standing crop grain." Raba said: "Under ban should be anyone who possesses it on a great scale; under ban, and again under ban, should be the one who does not possess it at all." R. Isaac, however, said: "Neither the whole nor a bit should one possess, for how can we consider so light the warning, (Pr. 16, 5) An abomination of the Lord is everyone that is proud of heart."

That which the verse said: “Hear and listen, do not be haughty [tigbahu]…” (Jeremiah 13:15) – what is “hear and listen”? Rabbi Tanḥuma said: The Holy One blessed be He said: ‘Hear the words of the Torah and do not speak haughtily.’ “For the Lord has spoken” (Jeremiah 13:15) – where did He speak? “Anyone haughty of heart is an abomination to the Lord” (Proverbs 16:5). Another matter, “hear” the words of the Torah and do not lift [tagbia] your ears to avoid hearing the Torah. “For the Lord has spoken” – where did He speak? “One who removes his ear from hearing Torah, even his prayer is an abomination” (Proverbs 28:9).
Another matter, “hear” the words of the Torah, “listen” to the words of the Torah. What is “do not be haughty [tigbahu]”? Do not cause goodness to be ascend [tigbehu] so that it does not come into the world.²Do not sin and thereby prevent goodness from coming to the world. “For the Lord has spoken” – where did He speak? “If you are willing and heed, the goodness of the land you will eat. But if you refuse and are defiant, you will be devoured by the sword, as the mouth of the Lord has spoken” (Isaiah 1:19–20). What is, “if you are willing and heed…”? Rabbi Elazar said: The sword and the [Torah] scroll descended intertwined from Heaven. [God] said to them: ‘If you perform what is written in this scroll, you will be delivered from this sword. If you do not perform it, you will be killed with this sword.’ Another matter, “if you are willing and heed…” – Rabbi Levi said: To what is the matter comparable? To a slave whose master said to him: ‘Here is a gold chain, and if [you do] not [act in accordance with my will], here are iron shackles.’ So, the Holy One blessed be He said to Israel: ‘If you perform My will, here is goodness and blessing. If not, here is the curse. There are two paths before you: “See, I place before you today a blessing and a curse.”’

And all who are haughty of heart cause the land to be defiled and the Shechinah to depart, as it is written (Ibid. 101:5) "The haughty of eyes and the broad of heart, him will I not abide." And all the haughty of heart are called "abomination," as it is written (Mishlei 16:5) "The abomination of the L–rd are all the haughty of heart." And idolatry is called "abomination," as it is written (Devarim 7:26) "And you shall not bring an abomination into your house." Just as idolatry defiles the land and causes the Shechinah to depart, so do all the haughty of heart.