1 Samuel 14:20-23

Then Saul and all the people who were with him rallied and came to the battle; and behold, every man’s sword was against his fellow, and there was very great confusion. Now the Hebrews who were with the Philistines previously, who went up with them all around in the camp, even they also turned to be with the Israelites who were with Saul and Jonathan. When all the men of Israel who had hidden themselves in the hill country of Ephraim heard that the Philistines had fled, even they also pursued them closely in the battle. So the LORD delivered Israel that day, and the battle spread beyond Beth-aven.