they made a song out of a medrash that says “at the time when the king mashiach comes he will stand on the roof of the bais hamikdash and he will say anavim anavim the time for your geula has arrived, and if you don’t believe it, see that my light shines”.anaaavim anavim… anyway this is mashma that mashiach will come after the bais hamikdash is already built.
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