Now these are the nations which Yahweh left, to prove Israel by them, even as many [of Israel] as had not known all the wars of Canaan;
"To prove Israel ... to know whether they would hearken." (Judges 3:4).  LaGard Smith's terse comment on this is fully sufficient: "Israel fails tests"![8]  As a college student would probably say it: "They flunked the examination!"  That failure is summarized in  Judges 3:6.