Unto the rock of Rimmon - This was some strong place, but where situated is not known. Here they maintained themselves four months, and it was by these alone that the tribe of Benjamin was preserved from utter extermination. See the following chapter, Judges 21 (note).
It is scarcely possible to imagine any thing more horrid than the indiscriminate and relentless slaughter of both innocent and guilty mentioned in this chapter. The crime of the men of Gibeah was great, but there was no adequate cause for this relentless extermination of a whole tribe. There was neither justice nor judgment in this case; they were on all sides brutal, cruel, and ferocious: and no wonder; there was no king in Israel - no effective civil government, and every man did what was right in his own eyes. There was no proper leader; no man that had authority and influence to repress the disorderly workings of the pell-mell mob.
Rimmon - A village named “Rummon”, situated on the summit of a conical chalky hill, still exists, and forms a remarkable object in the landscape, visible in all directions. It lies 15 miles north of Jerusalem. It is a different place from Rimmon in the south of Judah Joshua 15:32, and Remmon in Zebulon Joshua 19:13. Gidom, mentioned nowhere else, was evidently close to Rimmon.