וְנִגְלָ֖ה כְּב֣וֹד יְהוָ֑ה וְרָא֤וּ כָל־בָּשָׂר֙ יַחְדָּ֔ו כִּ֛י פִּ֥י יְהוָ֖ה דִּבֵּֽר׃ (ס)
And the glory of the LORD shall be revealed, and all flesh shall see it together; for the mouth of the LORD hath spoken it.’
Read kabbalistic (mystical) interpretation of Isaiah 40:5: and classical mystical sources.