As a second illustration of the consequences of living by the moral code of doing what is right in one's own eyes (Judges 17:6, 21:25), Judges 19-21 tells a second story from the period of the Judges, likely very early in that period.

We'll discover that one of the tribes of Israel has lost all sense of what is right and wrong. As a result, they not only refuse to deal with egregious sin in their midst, they defend that behavior even at the risk of their own lives.

Thankfully all of Israel has not lost its sense of what is right and wrong, and they address the problem. However, it costs them dearly to bring about justice and punish the wrong doers. 

This is an ugly story and much of it not meant to be read publicly, but it is a story we need to hear because it is a warning to us today about tolerating sin and defending those who choose to live by the code of "doing what is right in their own eyes."