שׁ֚וּבוּ לְבִצָּר֔וֹן אֲסִירֵ֖י הַתִּקְוָ֑ה גַּם־הַיּ֕וֹם מַגִּ֥יד מִשְׁנֶ֖ה אָשִׁ֥יב לָֽךְ׃
Return to the stronghold, Ye prisoners of hope; Even to-day do I declare That I will render double unto thee.
Read kabbalistic (mystical) interpretation of Zechariah 9:12: and classical mystical sources.