דברי הימים ב, פרק י״ג, פסוק י״ג

As Abijah delivered his address, the reality on the battlefield quickly shifted. Jeroboam likely paid no attention to the speech, using the time instead to execute a strategic military maneuver [ביאור שטיינזלץ]. Rather than waiting for a direct confrontation, he organized a flanking movement. He concealed a group of fighters and sent part of his army around the opposing forces, intending to surround the men of Judah and catch them by surprise from behind [מצודת דוד, ביאור שטיינזלץ].

This tactical decision effectively divided his troops into two coordinated units. Jeroboam and the main body of his army remained stationed directly in front of the men of Judah [מצודת דוד]. Meanwhile, the hidden troops successfully moved into position at their rear. This calculated maneuver resulted in a complete encirclement, trapping the army of Judah between the primary force facing them and the ambush waiting behind them [ביאור שטיינזלץ].