The turning point of Absalom's rebellion rests on a fateful psychological and strategic choice. Faced with the option of a swift surprise attack or a grand military campaign, the rebels choose the plan that appears safer, unaware that this decision seals their doom. Hushai's strategy captivated the crowd because it felt secure and visually impressive. It promised a massive national draft led personally by Absalom, a battle fought in broad daylight rather than the dead of night, and the prospect of capturing David alive rather than simply assassinating him [אברבנאל]. Additionally, the rebels feared an immediate, frontal clash with David and his men. Despite possessing a much larger army, they preferred the comfort of gathering even more forces before the final showdown [ביאור שטיינזלץ].
The approval of this grand strategy came specifically from Absalom and the general populace, revealing a divide within the ranks. This backing suggests that the elders of the nation did not agree with the new direction and remained loyal to Ahithophel's original advice [רלב״ג]. Alternatively, the support of the common people may have stemmed from a lingering affection they still held for David, a sentiment that set them apart from the strict calculations of the elders [אברבנאל].
Ultimately, the rebels' choice was not driven by pure rational calculation. The primary approach among commentators is that Hushai's advice was not objectively better. In reality, Ahithophel's strategy was the true and most effective way for Absalom to achieve his goals; had it been executed, David would have had absolutely no chance of survival. The fact that Hushai's plan appeared superior to the rebels was the result of direct divine providence, orchestrated to foil the original strategy and protect David [מלבי״ם, מצודת דוד, ביאור שטיינזלץ, אברבנאל]. God actively intervened to overturn the sound advice [מצודת ציון], acting in concert with His heavenly court to guide the human decision-making process from behind the scenes [חומת אנך].
The purpose of this hidden divine intervention was to bring disaster upon Absalom. Because of the sheer gravity of his rebellion, God's attribute of mercy was entirely inverted. The very forces of compassion were transformed into strict justice directed against him, ensuring his ultimate downfall [חומת אנך].