During a tense siege of Jerusalem, a dramatic shift takes place among the attacking forces. The ministers, deputies, and great men of Judah find themselves trapped within the enemy camp [מצודת ציון, אברבנאל, ביאור שטיינזלץ]. Many commentators agree that these leaders were drafted and forced to march against their own holy city entirely against their will.
Suddenly, a miraculous event unfolds on the battlefield. The Judean leaders watch as the enemy soldiers around them are struck down by plagues and blindness, while they themselves remain completely unharmed. Witnessing this selective destruction, they realize their survival is not due to their own personal merit, but is a direct result of God's providence [רש"י, מצודת דוד, אברבנאל, מלבי"ם].
This divine intervention sparks a profound inner awakening, filling the leaders with a sudden surge of courage and strength [רד"ק, מצודת ציון, מנחת שי]. They immediately attribute this newfound power to the residents of Jerusalem. The primary approach among commentators is that this strength stems from the power of prayer. The people of Jerusalem knew their leaders were forced into the enemy ranks, and they prayed fiercely for their safety. Each surviving leader understands in his heart that these prayers are the true shield that saved him from the plague [רש"י, מצודת דוד, אבן עזרא].
Building on this realization, this surge of courage is also a plea for the future. The leaders hope the people of Jerusalem will hold onto their faith and continue to pray for them, fully aware that God's presence rests within the city and that He listens to their cries [אברבנאל].
Others view this inner strength as a strategic and military hope. Because the Judean leaders have no actual desire to win the war and conquer the city, they silently pray that Jerusalem's defenders will find strength in God and successfully break the siege [ביאור שטיינזלץ]. Furthermore, they look to the city's residents as a source of power, hoping to eventually break free, join forces with their brethren, and fight their shared enemy together with God's help [רד"ק]. Ultimately, the righteousness and deep trust of the people of Jerusalem radiate outward, granting the Judean leaders the spiritual courage and inner strength they need to face the battles to come [מלבי"ם].