1 Samuel 13:3-4

3And Jonathan attacked the garrison of the Philistines that was in Geba, and the Philistines heard of it. Then Saul blew the trumpet throughout all the land, saying, “Let the Hebrews hear!”

4Now all Israel heard it said that Saul had attacked a garrison of the Philistines, and that Israel had also become an abomination to the Philistines. And the people were called together to Saul at Gilgal.