וְהָיָ֗ה בְּיוֹם֙ זֶ֣בַח יְהוָ֔ה וּפָקַדְתִּ֥י עַל־הַשָּׂרִ֖ים וְעַל־בְּנֵ֣י הַמֶּ֑לֶךְ וְעַ֥ל כָּל־הַלֹּבְשִׁ֖ים מַלְבּ֥וּשׁ נָכְרִֽי׃
And it shall come to pass in the day of the LORD’S sacrifice, That I will punish the princes, and the king’s sons, And all such as are clothed with foreign apparel.
Read midrashic interpretation of Zephaniah 1:8: and classical rabbinic exegesis.