כֹּ֤ה אָמַר֙ יְהוָ֣ה צְבָא֔וֹת כִּ֣י יִפָּלֵ֗א בְּעֵינֵי֙ שְׁאֵרִית֙ הָעָ֣ם הַזֶּ֔ה בַּיָּמִ֖ים הָהֵ֑ם גַּם־בְּעֵינַי֙ יִפָּלֵ֔א נְאֻ֖ם יְהוָ֥ה צְבָאֽוֹת׃ (פ)
Thus saith the LORD of hosts: If it be marvellous in the eyes of the remnant of this people in those days, should it also be marvellous in Mine eyes? saith the LORD of hosts.
Read kabbalistic (mystical) interpretation of Zechariah 8:6: and classical mystical sources.