1 Samuel 13:1-3

1Saul was [thirty] years old when he began to reign; he ruled over Israel for [forty] years.

2Saul selected for himself three thousand men from Israel. Two thousand of these were with Saul at Micmash and in the hill country of Bethel; the remaining thousand were with Jonathan at Gibeah in the territory of Benjamin. He sent all the rest of the people back home.

3Jonathan attacked the Philistine outpost that was at Geba and the Philistines heard about it. Then Saul alerted all the land saying, “Let the Hebrews pay attention!”