'Nations' in the Bible

They abandoned the LORD God of their ancestors, who had brought them out of the land of Egypt. They followed other gods from among the gods of the nations who surrounded them. They bowed down in worship of them, and by doing so angered the LORD.

I'm also going to stop expelling any of the nations that remained after Joshua died.

So the LORD caused those nations to remain and did not expel them quickly. He did not give them into Joshua's control.

Here's a list of nations that the LORD caused to remain in order to test Israel (that is, everyone who had not gained any battle experience in Canaan)

These nations included the five lords of the Philistines, all of the Canaanites, the Sidonians, and the Hivites who lived in Mount Baal-hermon as far as Lebo-hamath.