4:6 When the Philistines heard the sound of the shout, they said, “What is this loud shout in the camp of the Hebrews?” Then they realized that the ark of the Lord had arrived at the camp.
1 Samuel 28:1
The Witch of Endor
28:1 In those days the Philistines gathered their troops for war in order to fight Israel. Achish said to David, “You should fully understand that you and your men must go with me into the battle.”