Judges 3:1-4

Now these are the nations which the LORD left, to test Israel by them (that is, all who had not experienced any of the wars of Canaan; only in order that the generations of the sons of Israel might be taught war, those who had not experienced it formerly). These nations are: the five lords of the Philistines and all the Canaanites and the Sidonians and the Hivites who lived in Mount Lebanon, from Mount Baal-hermon as far as Lebo-hamath. They were for testing Israel, to find out if they would obey the commandments of the LORD, which He had commanded their fathers through Moses.