1 Samuel 13:1-3

1Saul was thirty years old when he began to reign, and he reigned forty-two years over Israel.

2Saul chose for himself 3,000 men of Israel; of whom 2,000 were with him in Michmash and in the hill country of Bethel, while 1,000 were with Jonathan at Gibeah of Benjamin. But he sent the rest of the people away, each one to his own tent.

3Jonathan attacked and defeated the Philistine garrison which was at Geba, and the Philistines heard about it. Then Saul blew the trumpet throughout the land, saying, “Let the Hebrews hear.”