1 Samuel 13:2-4

2And Saul chose him three thousand men out of Israel: there were with Saul two thousand in Michmash and in mount Bethel, and a thousand were with Jonathan in Gibeah of Benjamin; and the rest of the people he sent every man to his tent.

3And Jonathan smote the outpost of the Philistines that was in Geba, and the Philistines heard [of it]. And Saul blew the trumpet throughout the land, saying, Let the Hebrews hear.

4And all Israel heard say, Saul has smitten the garrison of the Philistines, and Israel also has become odious to the Philistines. And the people were called together after Saul to Gilgal.