Unprecedented military and political success often triggers a dangerous psychological and spiritual shift within a conqueror. A breaking point is reached where pride blinds the victor, ultimately driving him to outright rebellion against God.
Commentators offer two main ways to understand this transformation. The first approach views it as a deeply internal shift. As the conqueror witnesses his own massive success, his mindset alters [מצודת ציון]. He becomes consumed by extreme pride, morphing into an entirely different person who crosses all moral boundaries [רד״ק, אברבנאל]. What begins as a fleeting, arrogant thought quickly hardens into a permanent state of cruelty and self-importance [מלבי״ם]. Conversely, a second approach understands this change through a physical metaphor, comparing the conqueror to a swift, destructive storm wind that sweeps violently across the land and leaves ruin in its wake [אבן עזרא, ביאור שטיינזלץ].
As a result of these destructive patterns, the king descends into a state of deep wickedness and heavy guilt [מצודת ציון, מלבי״ם]. The root of this profound failure lies in his misplaced arrogance. Rather than acknowledging that his victories and authority were granted to him by God, the conqueror credits his success to his false idol [רש״י, אברבנאל]. Taking this delusion even further, he may actually come to view his own personal strength as a divine force that operates above the laws of nature [מלבי״ם].
Despite projecting this supreme confidence, the conqueror knows deep down that his actions are corrupt in the eyes of God, yet he actively chooses to turn away from the truth [מצודת דוד]. When referring to the false god he worships, some commentators note that the language used is intentionally dismissive, designed to express contempt and mock the idol's worthlessness, while others maintain it is simply a standard manner of speaking [רד״ק, אבן עזרא].