כֵּ֣ן שַׁ֤בְתִּי זָמַ֙מְתִּי֙ בַּיָּמִ֣ים הָאֵ֔לֶּה לְהֵיטִ֥יב אֶת־יְרוּשָׁלִַ֖ם וְאֶת־בֵּ֣ית יְהוּדָ֑ה אַל־תִּירָֽאוּ׃
so again do I purpose in these days to do good unto Jerusalem and to the house of Judah; fear ye not.
Read midrashic interpretation of Zechariah 8:15: and classical rabbinic exegesis.