I Samuel 4:1-2

And the word of Samuel came to all Israel. Now Israel went out to battle against the Philistines, and encamped beside Ebenezer; and the Philistines encamped in Aphek. Then the Philistines put themselves in battle array against Israel. And when they joined battle, Israel was defeated by the Philistines, who killed about four thousand men of the army in the field.