‘ And they said, “Oh Yahweh, the God of Israel, why has this happened in Israel that there should be today one tribe lacking?”
What they were asking was what had been the causes that had brought this about. What had led Benjamin to become caught up in the Canaanite religion and ways? So do men behave when they are unaware of their own weaknesses. Some of them were in danger of the same thing. The answer, of course, was that they had fraternised with the Canaanites in spite of God's prohibition. They had disobeyed God.