1 Samuel 14:14-16

14In that first attack Jonathan and his armor-bearer killed some twenty men in an area of about half an acre.

Israel Routs the Philistines 15Then panic struck the whole army—those in the camp and field, and those in the outposts and raiding parties—and the ground shook. It was a panic sent by God. Or a terrible panic 16Saul’s lookouts at Gibeah in Benjamin saw the army melting away in all directions.