Saul, and Jonathan his son, and the people who were present with them, abode in Geba of Benjamin: but the Philistines encamped in Michmash.
So Jonathan was out wiping out the Philistines and Saul was around blowing the trumpet, and taking the glory and announcing that he had smitten the Philistines so that the Israelites heard that Saul had smitten the Philistines with a great slaughter.