Judges 3:2-4

2The Lord left them to teach Israel’s descendants about war, at least those who had known nothing about it in the past.

3He left the five rulers of the Philistines, all the Canaanites, the Sidonians, and the Hivites who lived on Mount Lebanon from Mount Baal Hermon to the border of Hamath.

4These nations were left to test the Israelites, to find out if they would obey the commands the Lord had given their ancestors through Moses.