Then he called the bridegroom aside 10 and said, “Everyone brings out the choice wine first and then the cheaper wine after the guests have had too much to drink; but you have saved the best till now.”
(John 2:9-10)
The bridegroom is allegory of the Jewish Messiah. The master of banquet (the demiurge) believes that the miracle is fulfilled by the bridegroom, the his Messiah, i.e. what the his Messiah will realize at the end of the times.
But he doesn't realize that the miracle is done by Jesus (definitely NOT the bridegroom), of which the mother is only putative (but she is not the real mother, Jesus having only the unknown God as Father).
The other people at the banquet are the friends of the demiurge: the Archons (and/or the Judaizers). They are there to homage the bridegroom (the Jewish Messiah).
