כִּ֤י מִירֽוּשָׁלִַ֙ם֙ תֵּצֵ֣א שְׁאֵרִ֔ית וּפְלֵיטָ֖ה מֵהַ֣ר צִיּ֑וֹן קִנְאַ֛ת יְהוָ֥ה צְבָא֖וֹת תַּֽעֲשֶׂה־זֹּֽאת׃ (ס)
For out of Jerusalem shall go forth a remnant, and out of mount Zion they that shall escape; the zeal of the LORD of hosts shall perform this.
Read midrashic interpretation of Isaiah 37:32: and classical rabbinic exegesis.