What does 1 Samuel 17:52 mean?

The men of Israel and Judah surged forward, shouting, and chased the Philistines all the way to the entrance of Gath and the gates of Ekron. Dead Philistines were scattered along the road as far as Shaaraim, Gath, and Ekron. 1 Samuel 17:52 - Modern Text Bible

(The Israelites are suddenly filled with courage and pursue the fleeing Philistines, turning the tide of the battle.)