The gospel of John recorded seven “signs” of Jesus. These were miracles, yet John chose to call them “signs” because he wanted to emphasize their purpose, namely, that they pointed to Jesus as the Messiah, the Son of God.
John wrote, “Now Jesus did many other signs in the presence of the disciples, which are not written in this book; but these are written so that you may believe that Jesus is the Christ, the Son of God, and that by believing you may have life in his name” (John 20:30-31).
John wanted his readers to take their eyes off of the miracles and put them on the Miracle-worker, Jesus. In this second sign, Jesus healed the nobleman’s son in Cana without even going to see him. He healed him with a word. And the nobleman, an officer of the king, believed in Jesus as his true King from that day forward.