Judges 3:1-2, 4-6

Here is a list of the nations that YAHWEH permitted to remain in the land so he could use them to test the Israelites who had not known what it was like during the Canaanite wars. He wanted the succeeding generations of Israel, who had not known war before, to learn the art of warfare.

They remained in the land to test Israel to see if they would obey YAHWEH’s commands that Moses had given to their ancestors. So the Israelites settled among the Canaanites, Hittites, Amorites, Perizzites, Hivites, and Jebusites. They took their daughters in marriage and gave their own daughters to their sons; and the Israelites served their false gods.