Judges 3:1 in the World English Bible
Now these are the nations which the LORD left, to test Israel by them, even as many as had not known all the wars of Canaan;
Context
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;
2 Only that the generations of the children of Israel might know, to teach them war, at the least such as before knew nothing thereof;