As the conflict moved into the Philistine territory surrounding Gerar, the focus of the attacks and looting turned to the local cities [מלבי״ם, ביאור שטיינזלץ]. While the primary enemy army was defeated directly by God, the Israelites themselves took physical action to strike down these neighboring areas [מלבי״ם].
Conquering these cities proved remarkably easy. A profound fear of God paralyzed the local inhabitants, leaving them with no strength to fight or resist [מצודת דוד]. As they took control of the defenseless region, the Israelites found a massive amount of wealth waiting for them [ביאור שטיינזלץ].
The sheer volume of these spoils caused the Israelites to deliberately delay their progress, taking the time to thoroughly loot the area [מצודת דוד]. Unlike the initial military victory, this abundance did not simply fall into their hands on its own; reaping the rewards of their triumph required them to actively and methodically gather the treasures left behind [מלבי״ם].