בַּיּ֣וֹם הַה֗וּא יִֽהְיֶה֙ יְהוָ֣ה צְבָא֔וֹת לַעֲטֶ֣רֶת צְבִ֔י וְלִצְפִירַ֖ת תִּפְאָרָ֑ה לִשְׁאָ֖ר עַמּֽוֹ׃
An jenem Tage wird der Herr Zebaot sein zum prächtigen Diadem und zur herrlichen Krone für den Rest seines Volkes [für Jehuda].
Ibn Ezra on Isaiah
In that day, etc. This will be just the reverse of the fate of the crown of Ephraim; for the kingdom of the Lord will appear in Zion.
Rashi on Isaiah
for a crown of beauty for the remaining righteous men among them.