Now these are the nations which the LORD left, to prove Israel by them, even as many of Israel as had not known all the wars of Canaan; Now these are the nations - The nations left to prove the Israelites were the five lordships or satrapies of the Philistines, viz., Gath, Askelon, Ashdod, Ekron, and Gaza; the Sidonians, the Hivites of Lebanon, Baal-hermon, etc.; with the remains of the Canaanites, viz., the Hittites, Amorites, Perizzites, and Jebusites. Those who were left to be proved were those Israelites that had not seen all the wars of Canaan.
Related Commentaries of Judges 3:1
Judges 3:1
1 Now these are the nations which the LORD left, to prove Israel by them, even as many of Israel as had not known all the wars of Canaan;