This beginning of his signs Jesus did in Cana of Galilee, and revealed his glory; and his disciples believed in him.

 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. 