1 Samuel 29:1
Now the Philistines gathered together all their armies to Aphek: and the Israelites pitched by a fountain which is in Jezreel.
Cross-reference
1 Samuel 28:1 sets up the Philistine assembly for war that 29:1 then describes — a direct narrative continuation.
1 Samuel 28:4 describes the Philistines camping at Shunem later in this campaign — showing the movement of forces before the battle.
1 Samuel 31:1 records the battle at Mount Gilboa that results from this Philistine gathering at Aphek — the climax of Saul's reign.
1 Samuel 4:1 also records the Philistines camping at Aphek for battle — a similar military assembly at the same location.
1 Chronicles 10:1 recounts the same battle on Mount Gilboa — a parallel account of the Philistine victory over Israel.
Judges 6:33 describes Midianites camping in the Valley of Jezreel — a similar enemy gathering at the same location as here.
1 Kings 20:26 describes another army gathering at the same location Aphek — a later battle against the Arameans.
1 Kings 20:30 records another battle at Aphek where a wall fell — same location as the Philistine gathering here, but a different conflict.