Judges 3:4-8

They were left to test Israel by them, to find out if they would obey the commandments of the Lord, which He had commanded their fathers through Moses.

The sons of Israel lived among the Canaanites, the Hittites, the Amorites, the Perizzites, the Hivites, and the Jebusites;

and they took their daughters for themselves as wives, and gave their own daughters to their sons, and served their gods.

So the sons of Israel did what was evil in the sight of the Lord, and they forgot the Lord their God and served the Baals and the Asheroth.

Then the anger of the Lord was kindled against Israel, so that He sold them into the hand of Cushan-rishathaim, king of Mesopotamia; and the sons of Israel served Cushan-rishathaim for eight years. The First Judge Frees Israel