The Philistines] see on Judges 3:3. Ebenezer] 'stone of help.' The place is called by the name familiar to the readers of the book, though it did not actually receive the name till later (1 Samuel 7:12). The positions of Eben-ezer and Aphek have not been determined with certainty.
Related Commentaries of 1 Samuel 4:1
1 Samuel 4:1
1 And the word of Samuel came to all Israel. Now Israel went out against the Philistines to battle, and pitched beside Ebenezer: and the Philistines pitched in Aphek.