Judges 3:1-4

Now these are the nations which the Lord kept in the land for the purpose of testing Israel by them, all those who had had no experience of all the wars of Canaan; Only because of the generations of the children of Israel, for the purpose of teaching them war--only those who up till then had no experience of it; The five chiefs of the Philistines, and all the Canaanites and the Zidonians and the Hivites living in Mount Lebanon, from the mountain Baal-hermon as far as Hamath: For the purpose of testing Israel by them, to see if they would give ear to the orders of the Lord, which he had given to their fathers by the hand of Moses.