1 Samuel 4:6-7

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. 4:7 The Philistines were scared because they thought that gods had come to the camp. They said, “Too bad for us! We’ve never seen anything like this!

1 Samuel 4:10-11

4:10 So the Philistines fought. Israel was defeated; they all ran home. The slaughter was very great; thirty thousand foot soldiers fell in battle. 4:11 The ark of God was taken, and the two sons of Eli, Hophni and Phineas, were killed.