Military victory often depends on more than just physical strength or strategic advantage; it requires deep spiritual reliance. In the heat of battle, fighters turn to prayer and absolute trust in God, and this is what ultimately tips the scales and brings about the enemy's defeat.
The primary approach among commentators is that the fighters received direct assistance from God to overcome their enemies. However, a different perspective suggests that the immediate help came from a human source. According to [מלבי״ם], King Jeroboam provided military aid and led them to victory in the campaign. Yet, even with this human intervention, the defeat of the enemies was made possible first and foremost because of the fighters' desperate cries to God and their unwavering trust in Him.
The enemy forces did not stand alone. The commentators agree that they were joined by other nations, small tribes, and allies who had banded together to assist the Hagrites. All of these supporting troops were also defeated and fell into the hands of the fighters.
The divine response to the fighters' pleas was complete. God heard their voices, accepted their prayers, and answered their requests, allowing Himself to be moved by their cries [רד״ק]. The nature of this interaction reflects a sense of abundance and overflow [מצודת ציון]. Because of the sheer power and intensity of their prayer, they received a full, overwhelming response from God.