Of all sins pride is most dangerous to the souls of men.

Pride is a sin that will put the soul upon the worst of sins. Pride is a gilded misery, a secret poison, a hidden plague. It is the engineer of deceit, the mother of hypocrisy, the parent of envy, the moth of holiness, the blinder of hearts, the turner of medicines into maladies, and remedies into diseases. It is the original and root of most of those notorious vices that be to be found among the children of men. 

It was pride that put Herod upon seeking the blood of Christ. It was pride that put the Pharisees upon the persecuting of Christ. It was pride that made Athaliah destroy all the seed-royal of the house of Judah, that he might reign, 2 Chron. 21:10. It was pride that put Joab upon murdering perfidiously, under colour of friendship, Abner, 2 Sam. 3:27, and Amasa, 2 Sam. 20:9, 10. Zimri, out of ambition to reign, murdered Elah his lord, 1 Kings 16:8–10.

 Omri, out of pride and ambition to reign, rose up against Zimri, and enforced him to burn himself in the king’s palace, 1 Kings 16:18. 

It is pride that hath ushered in all the contentions that be in towns, cities, countries, families, and pulpits throughout the world. It was pride and ambition to reign that put Absalom upon pursuing his father’s life, from whom he had received life. 

It is very remarkable, that the pride and ambition of Nebuchadnezzar did usher in the destruction of the Assyrian monarchy; and the ambition and pride of Cyrus that did usher in the overthrow of the Babylonian monarchy; and the ambition and pride of Alexander was the cause of the annihilation of the Persian monarchy; and it was the pride and ambition of the Roman commanders that was the cause of the utter subversion of the Grecian monarchy. 

There is no tongue that can express, nor heart that can conceive, the horrid sins and miseries that pride hath ushered in among the children of men. All sin will down with a proud heart that is resolved to rise. Great sins are no sins with such a soul; he makes nothing of those very sins that would make the very heathen to blush.

-Thomas Brooks