1 Samuel 13:1

1Saul was thirty years old when he became king, and he reigned over Israel forty-two years.

2Saul chose for himself three thousand men of Israel, of which two thousand were with Saul in Michmash and in the Mount of Bethel, and one thousand were with Jonathan in Gibeah of Benjamin. He sent the rest of the people to their own tents.

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