1 Samuel 6:16

6:16 The five leaders of the Philistines watched what was happening and then returned to Ekron on the same day.

Joshua 13:3

13:3 from the Shihor River east of Egypt northward to the territory of Ekron (it is regarded as Canaanite territory), including the area belonging to the five Philistine lords who ruled in Gaza, Ashdod, Ashkelon, Gath, and Ekron, as well as Avvite land