Jesus ordered the servants, "Fill the pots with water." And they filled them to the brim.
"Now fill your pitchers and take them to the host," Jesus said, and they did.
When the host tasted the water that had become wine (he didn't know what had just happened but the servants, of course, knew), he called out to the bridegroom,
"Everybody I know begins with their finest wines and after the guests have had their fill brings in the cheap stuff. But you've saved the best till now!"
This act in Cana of Galilee was the first sign Jesus gave, the first glimpse of his glory. And his disciples believed in him.