The first recorded miracle of Jesus is the changing of the water to wine and is found in John 2:1-11. This miracle is especially rich in symbolism and ends by John explaining, “This beginning of miracles did Jesus in Cana of Galilee, and manifested forth his glory” (John 2:11). The Greek word translated as miracles could also be translated as signs. “This beginning of signs did Jesus in Cana of Galilee.” Which raises the question, what is the sign?
The answer is found in the details John gives us concerning how this miracle took place. “And there were set there six waterpots of stone, after the manner of the purifying of the Jews, containing two or three firkins apiece. Jesus saith unto them, Fill the waterpots with water. And they filled them up to the brim” (John 2:6-7).
Now for the symbolism. We are the pots! Our bodies, like the stone pots are made from the elements of the earth and in the scriptures we are sometimes called the vessels of the Lord. John also tells us that these stone pots were set apart for sacred purposes, the purifying of the Jews, and we have been foreordained or set apart for sacred purposes, to help in the work of the Lord. Jesus Christ is the fountain of Living Water and prophets and teachers (servants) help bring that water to us until we are filled to the brim. It doesn’t happen at once, but is a lifetime process. Once we are as full as we can be (filled to the brim) Jesus Christ changes us—He makes us into something better.
Thus we see that the “sign” is that Jesus Christ has come to change us. If we will "fill" ourselves with His gospel and with Him, He will change us into something better!