1 Samuel 4:1

4:1 Samuel revealed the word of the Lord to all Israel.

The Ark of the Covenant is Lost to the Philistines

Then the Israelites went out to fight the Philistines. They camped at Ebenezer, and the Philistines camped at Aphek.

1 Samuel 13:17

13:17 Raiding bands went out from the camp of the Philistines in three groups. One band turned toward the road leading to Ophrah by the land of Shual;

1 Samuel 19:8

19:8 Now once again there was war. So David went out to fight the Philistines. He defeated them thoroughly and they ran away from him.