וַיַּרְאֵם֙ אֶת־מְב֣וֹא הָעִ֔יר וַיַּכּ֥וּ אֶת־הָעִ֖יר לְפִי־חָ֑רֶב וְאֶת־הָאִ֥ישׁ וְאֶת־כָּל־מִשְׁפַּחְתּ֖וֹ שִׁלֵּֽחוּ׃
那人就把進城的入口指給他們看，他們便用刀擊殺城中的人，卻放走了那人和他全家。
Rashi
He showed them with his finger.34If this heathen, by the mere flick of a finger, saved himself and his progeny, then certainly one who actively escorts others. (Sotah, 46:b)