Jesus said to them, "Fill the water pots with water." They filled them up to the brim.

 Jesus knew human nature. He knew the fickleness and instability of the heart of man. He knew that a man can be swept away in a moment of emotion, and then back out when he discovers what decision really means. He knew how human nature hungers for sensations. He wanted not a crowd of men cheering they knew not what, but a small company who knew what they were doing and who were prepared to follow to the end. 