Thematic Bible: With the philistines oppressed israel for eighteen years

The children of Israel again did that which was evil in the sight of Yahweh, and served the Baals, and the Ashtaroth, and the gods of Syria, and the gods of Sidon, and the gods of Moab, and the gods of the children of Ammon, and the gods of the Philistines; and they forsook Yahweh, and didn't serve him. The anger of Yahweh was kindled against Israel, and he sold them into the hand of the Philistines, and into the hand of the children of Ammon. They troubled and oppressed the children of Israel that year: eighteen years [oppressed they] all the children of Israel that were beyond the Jordan in the land of the Amorites, which is in Gilead. read more.
The children of Ammon passed over the Jordan to fight also against Judah, and against Benjamin, and against the house of Ephraim; so that Israel was very distressed.