When Jesus turned water into wine, His disciples believed in Him. It also says that His glory was revealed. This means that miracles are important in evangelism. They are important in our lives for they reveal the glory of God. What this miracle tells us about Jesus is:

1. Jesus is a miracle worker

2. Jesus understands our shortcomings and therefore can come in any time we run short of our resources.

3. Jesus will not deal with our situations and circumstances unless we invite Him to deal with them, for inviting Him means that we have faith in Him and therefore we please Him(It is impossible to please God without faith)

4. It is not enough to just have faith in Jesus. When He gives us instructions to follow, our situations will change when we obey those instructions otherwise we will continue suffering. 

JESUS TOLD HIM ABOUT HIS ORIGIN AND ALSO WHERE HE WAS WHEN HE WAS CALLED.THIS COULD NOT HAVE BEEN POSIBLE BY AN ORDINARY PERSON,NATHANAEL BELIEVED.