וַיַּרְאֵם֙ אֶת־מְב֣וֹא הָעִ֔יר וַיַּכּ֥וּ אֶת־הָעִ֖יר לְפִי־חָ֑רֶב וְאֶת־הָאִ֥ישׁ וְאֶת־כָּל־מִשְׁפַּחְתּ֖וֹ שִׁלֵּֽחוּ׃
And he showed them the entrance into the city, and they smote the city with the edge of the sword; but they let the man go and all his family.
Read halakhic rulings (Jewish law) on Judges 1:25: and classical halakhic sources.