Judges 2:10

And also all that generation, all the contemporaries of Joshua, were gathered unto their fathers; and there arose another generation after them which knew not the Lord, nor yet the works which He had done for Israel. They had not been witnesses of, they had not personally experienced, the miraculous Revelation s of divine power in giving the Land of Promise to the children of Israel. They did not feel their indebtedness to God, they were not conscious of the fact that victory and freedom and riches came to them from the Lord.