Jos 13:2-3 Lands remaining unconquered
This is the land that still remains: all the regions of the Philistines, and all those of the Geshurites 3 (from the Shihor, which is east of Egypt, northward to the boundary of Ekron, it is reckoned as Canaanite; there are five rulers of the Philistines, those of Gaza, Ashdod, Ashkelon, Gath, and Ekron), and those of the Avvim,
Judg 1:17-19 The settlement of Judah
Judah went with his brother Simeon, and they defeated the Canaanites who inhabited Zephath, and devoted it to destruction. So the city was called Hormah. Judah took [did not take: LXX] Gaza with its territory, Ashkelon with its territory, and Ekron with its territory. The Lord was with Judah, and he took possession of the hill country, but could not drive out the inhabitants of the plain, because they had chariots of iron.
1Sam. 5:10 The ark in Ekron
So they [the Philistines] sent the ark of the God of Israel to Ekron. But when the ark of God came to Ekron, the people of Ekron cried out, "Why have they brought around to us the ark of the God of Israel to kill us and our people?".
2Kings 1:2-3 Baal-zebub, the god of Ekron
Ahaziah had fallen through the lattice in his upper chamber in Samaria, and lay injured; so he sent messengers, telling them, "Go, inquire of Baal-zebub, the god of Ekron, whether I shall recover from this injury." But the angel of the Lord said to Elijah the Tishbite, "Get up, go to meet the messengers of the king of Samaria, and say to them, 'Is it because there is no God in Israel that you are going to inquire of Baal-zebub, the god of Ekron?'