Jesus performed many miracles displaying His control over the weather, healing the blind and lame, casting out demons and even raising people from the dead.
Jesus changes water into wine at a wedding in Cana - John 2:1-11
Jesus raises Lazarus from the dead after being dead for 4 days - John 11:17-44
Jesus and the miraculous catch of fish (after he was resurrected) - John 21:1-14
Above are only some of the miracles Jesus performed. John 20:30-31 had this to say:
30. Jesus did many other miraculous signs in the presence of his disciples, which are not recorded in this book.
31. But these are written that you may believe that Jesus is the Christ, the Son of God, and that by believing you may have life in his name.