Judges 3:9 (KJV)

And they were to prove Israel by them, to know whether they would hearken unto the commandments of the LORD, which he commanded their fathers by the hand of Moses.

And the children of Israel dwelt among the Canaanites, Hittites, and Amorites, and Perizzites, and Hivites, and Jebusites:

And they took their daughters to be their wives, and gave their daughters to their sons, and served their gods.

And the children of Israel did evil in the sight of the LORD, and forgat the LORD their God, and served Baalim and the groves.

Therefore the anger of the LORD was hot against Israel, and he sold them into the hand of Chushanrishathaim king of Mesopotamia: and the children of Israel served Chushanrishathaim eight years.

And the Spirit of the LORD came upon him, and he judged Israel, and went out to war: and the LORD delivered Chushanrishathaim king of Mesopotamia into his hand; and his hand prevailed against Chushanrishathaim.

And the land had rest forty years. And Othniel the son of Kenaz died.

And the children of Israel did evil again in the sight of the LORD: and the LORD strengthened Eglon the king of Moab against Israel, because they had done evil in the sight of the LORD.

And he gathered unto him the children of Ammon and Amalek, and went and smote Israel, and possessed the city of palm trees.

So the children of Israel served Eglon the king of Moab eighteen years.