The ultimate collapse of human arrogance often arrives through a brutal clash with reality. A ruler who elevates himself to the status of a god is suddenly left entirely powerless against a ruthless, mortal enemy. God brings fierce foreign nations against this ruler, specifically identifying them as the Chaldeans [מצודת דוד, מצודת ציון]. These invaders are characterized by their immense power and cruel tyranny [מצודת ציון, מלבי״ם]. They are merciless forces who will show no regard for the ruler's honor or his delusions of grandeur, easily overwhelming him [מלבי״ם, ביאור שטיינזלץ].
As the attackers unsheathe their weapons [מצודת ציון, רש״י, ביאור שטיינזלץ], they target the very wisdom the ruler so highly prized. The primary approach among commentators is that his vast intelligence will completely fail to save him [מצודת דוד], ending in total destruction [רד״ק]. Alternatively, this targeted wisdom represents the massive wealth he accumulated [מלבי״ם], or the great army he strategically assembled, which will now fall to the blade [רד״ק]. Beyond the literal threat of drawn swords, a Midrashic tradition suggests a deeply humiliating punishment of violation, a fate shared by Joash, Hiram, and Nebuchadnezzar, three kings who falsely declared themselves deities [רש״י].
Ultimately, the invading forces will defile the ruler's radiant appearance and shining presence [מצודת ציון, רד״ק, רש״י, ביאור שטיינזלץ], destroying the fading beauty of his era [רש״י]. Because such radiance usually implies spiritual light, its defilement carries profound weight. The attackers will treat the glow of his intellect with absolute contempt, shedding his blood without hesitation [מצודת דוד]. In doing so, they will completely shatter and profane the divine image the arrogant ruler claimed for himself [מלבי״ם].