1 Samuel 4:1
“And the word of Samuel came to all Israel. Now Israel went out against the Philistines to battle, and pitched beside Eben–ezer: and the Philistines pitched in Aphek.”
And the word of Samuel came to all Israel. Now Israel went out against the Philistines to battle, and pitched beside Eben–ezer: and the Philistines pitched in Aphek.
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.
And when the people were come into the camp, the elders of Israel said, Wherefore hath the Lord smitten us to day before the Philistines? Let us fetch the ark of the covenant of the Lord out of Shiloh unto us, that, when it cometh among us, it may save us out of the hand of our enemies.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“Then Samuel took a stone, and set it between Mizpeh and Shen, and called the name of it Eben–ezer, saying, Hitherto hath the Lord helped us.”
“From the south, all the land of the Canaanites, and Mearah that is beside the Sidonians, unto Aphek, to the borders of the Amorites:”
“Ummah also, and Aphek, and Rehob: twenty and two cities with their villages.”
“Namely, five lords of the Philistines, and all the Canaanites, and the Sidonians, and the Hivites that dwelt in mount Lebanon, from mount Baal–hermon unto the entering in of Hamath.”
“And after him was Shamgar the son of Anath, which slew of the Philistines six hundred men with an ox goad: and he also delivered Israel.”