Isaiah 4:3 Kabbalah

וְהָיָ֣ה ׀ הַנִּשְׁאָ֣ר בְּצִיּ֗וֹן וְהַנּוֹתָר֙ בִּיר֣וּשָׁלִַ֔ם קָד֖וֹשׁ יֵאָ֣מֶר ל֑וֹ כָּל־הַכָּת֥וּב לַחַיִּ֖ים בִּירוּשָׁלִָֽם׃

And it shall come to pass, that he that is left in Zion, and he that remaineth in Jerusalem, shall be called holy, even every one that is written unto life in Jerusalem;