1 Samuel 14:20-23

Then Saul and all his men assembled and went to the battle. They found the Philistines in total confusion, striking each other with their swords. Those Hebrews who had previously been with the Philistines and had gone up with them to their camp went over to the Israelites who were with Saul and Jonathan. When all the Israelites who had hidden in the hill country of Ephraim heard that the Philistines were on the run, they joined the battle in hot pursuit. So on that day the LORD saved Israel, and the battle moved on beyond Beth Aven.