The first miracle...

6  Nearby stood six stone water jars, the kind used by the Jews for ceremonial washing, each holding from twenty to thirty gallons.  7  Jesus said to the servants, "Fill the jars with water"; so they filled them to the brim.  8  Then he told them, "Now draw some out and take it to the master of the banquet."  They did so,  9  and the master of the banquet tasted the water that had been turned into wine. He did not realize where it had come from, though the servants who had drawn the water knew. Then he called the bridegroom aside  10  and said, "Everyone brings out the choice wine first and then the cheaper wine after the guests have had too much to drink; but you have saved the best till now."  11  This, the first of his miraculous signs, Jesus performed in Cana of Galilee. He thus revealed his glory, and his disciples put their faith in him.   John 2:6-11

The significance of the first miracle?  In the Old Testament, Exodus 7:20, the turning of water into blood was the first of the public miracles that Moses did in Egypt. Moses’ miracle was one of destruction, a payment for sin.  In the New Testament (or in the Good News), turning the water into wine was the first of the public miracles that Jesus did.  Not only did he turn water into wine, it was the best wine, served last, a taste of the Messiah come to earth.  It was served in the “washing jars”.   My take on the "washing jars"?  This signifies that the forgiveness of sins is to be done by Him.