ק֥וֹל צֹפַ֛יִךְ נָ֥שְׂאוּ ק֖וֹל יַחְדָּ֣ו יְרַנֵּ֑נוּ כִּ֣י עַ֤יִן בְּעַ֙יִן֙ יִרְא֔וּ בְּשׁ֥וּב יְהוָ֖ה צִיּֽוֹן׃
Hark, thy watchmen! they lift up the voice, Together do they sing; For they shall see, eye to eye, The LORD returning to Zion.
Read kabbalistic (mystical) interpretation of Isaiah 52:8: and classical mystical sources.