יהושע, פרק ח׳, פסוק י״ט

The dramatic turning point in the battle for Ai occurs when a visual command is given for the hidden forces to burst forward. From a great distance, Joshua points his long weapon toward the city. This serves as a silent signal for the waiting troops that the moment has arrived to emerge from their hiding places [שטיינזלץ].

The coordinated assault is carried out by two distinct ambush forces. Both groups rise from their respective hiding spots, rush into the city together, and swiftly set it on fire [אברבנאל].

Igniting the city is not merely an act of destruction, but a calculated tactical maneuver designed to send a thick column of smoke into the sky. The sight of the smoke is intended to break the spirit of the men of Ai, forcing them to realize that their homes and families are in flames. This psychological blow allows the tide of the battle to reverse completely. The Israelites, who had been pretending to flee, suddenly turn into pursuers, closing in and trapping the enemy [אברבנאל].