בַּיּ֣וֹם הַה֗וּא יִֽהְיֶה֙ יְהוָ֣ה צְבָא֔וֹת לַעֲטֶ֣רֶת צְבִ֔י וְלִצְפִירַ֖ת תִּפְאָרָ֑ה לִשְׁאָ֖ר עַמּֽוֹ׃
В тот день Господь Саваоф станет Царем славы и диадемой красоты, остатком народа Своего;
Ibn Ezra
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
for a crown of beauty for the remaining righteous men among them.