וְהָאֹרֵ֣ב הֵחִ֔ישׁוּ וַֽיִּפְשְׁט֖וּ אֶל־הַגִּבְעָ֑ה וַיִּמְשֹׁךְ֙ הָאֹרֵ֔ב וַיַּ֥ךְ אֶת־כָּל־הָעִ֖יר לְפִי־חָֽרֶב׃
And the liers-in-wait hastened, and rushed upon Gibeah; and the liers-in-wait drew forth, and smote all the city with the edge of the sword.
Read midrashic interpretation of Judges 20:37: and classical rabbinic exegesis.