What does Judges 20:13 mean?
Troops amassed from eleven of Israel's twelve tribes (Judges 20:1–11) are waiting to destroy rapists and murderers among the city of Gibeah (Judges 19:22–27). First, a delegation was sent to the twelfth tribe, Benjamin (Judges 19:14). Before they attack the city, the other tribes invite Benjamin to stand with them (Judges 20:12). They ask for cooperation in bringing justice to these unashamed killers. Rather than raid the territory, it would be better if the Benjaminites were to hand the men over for justice. The other tribes want Benjamin to participate in purging the evil which has stained Israel.Instead of agreeing that the evil in Gibeah must be ended, the people of Benjamin see only an invading army. They refuse to cooperate. The Benjaminites likely agree that what happened in Gibeah was heinous. Their refusal here is probably not about justice, but sovereignty. They seem to resent the idea of other tribes telling them how, and when, to govern their own cities.
Rather than stand with their fellow Israelites in punishing evil, the tribe of Benjamin stands against their brothers. This choice will result in a minor civil war and the near extinction of their tribe.