Of Jesus, John wrote: (if everything Jesus did was written one by one,) “that even the world itself could not contain the books that would be written. Amen.” (John 21:25)
The implication is clear. Jesus performed so many miracles and works they were innumerable. Impossible to count. So many it would be an incredibly difficult task to record them or acknowledge them all – even if you sought you do so.
John’s Gospel is unique. John chooses the works of Jesus he is led by the Holy Spirit to record for us. An extreme subset of all Jesus did. The intent of the miracles he chose to present to us?
“And truly Jesus did many other signs in the presence of His disciples, which are not written in this book, but these are written that you may believe that Jesus is the Christ, the Son of God, and that believing you may have life in His name.” (John 20:21) (Emphasis mine.)
So we know the seven miracles John was led by the Holy Spirit to record are critically important to our full understanding of Who Jesus is – and our eternal life in heaven rests on our ability to comprehend these miracles as they are presented to us.
As Chapter 2 begins, we find Jesus and His disciples invited to a wedding in Cana. This would have been a very significant time in John’s life, as he has just begun to follow Jesus. (It is interesting to note John himself does not record the moment he was called by Jesus to follow Jesus. That moment is left for Mark and Luke to describe in their Gospels.)
I remember almost everything that took place in my life in my earliest days of following Jesus, and I am fairly certain John would say the same thing. This particular miracle of Jesus probably was among the best-remembered by John.
That Jesus changed water into wine is significant. That He did so without really letting anyone except those He chose to know about it know is also significant. It was only the servants of Christ and the disciples of Christ who fully understood what just happened. The same is true today.