Reference for Judges 8:16

וַיִּקַּח֙ אֶת־זִקְנֵ֣י הָעִ֔יר וְאֶת־קוֹצֵ֥י הַמִּדְבָּ֖ר וְאֶת־הַֽבַּרְקֳנִ֑ים וַיֹּ֣דַע בָּהֶ֔ם אֵ֖ת אַנְשֵׁ֥י סֻכּֽוֹת׃

And he took the elders of the city, and thorns of the wilderness and briers, and with them he taught the men of Succoth.