1 Samuel 4:2

And the Philistines prepare to fight with Israel, and the battle was turned against them; and the men of Israel fell before the Philistines, and there were smitten in the battle in the field four thousand men.

And the Philistines put themselves in array against Israel: and when they joined battle, Israel was smitten before the Philistines: and they slew of the army in the field about four thousand men.

The Philistines put themselves in array against Israel. When they joined battle, Israel was defeated by the Philistines, who killed about four thousand men of the army in the field.