What does John 2:2 mean?

The wording of these verses (John 2:1) suggests that Jesus' mother Mary was already at the wedding. Jesus' group would have arrived later. Based only on these words, it's not clear if Jesus was directly invited to the wedding. Since Cana was Nathanael's hometown (John 21:2), he might have been the main invited guest. Jesus might have been there because He was related to Mary, or as Nathanael's friend. At this point, Jesus had only five, perhaps six disciples. These were John, Andrew, Peter, Philip, Nathanael, and possibly James (John 1:35–51; Matthew 10:2).

Ancient Jewish weddings typically lasted several days. They included a great number of guests. Hospitality was a major concern in this culture, so any blunder would be embarrassing for the bride and groom. Neither Jesus, His family, nor His friends were wealthy. It's no surprise that the married couple didn't have enough supplies to last. The upcoming miracle (John 2:9–10) is very subtle; only the servants, Mary, and a few disciples even know it has occurred.