Wow - just wow - has there ever been a verse taken further out of context?!
John 2:3 When the wine was gone, Jesus’ mother said to him, “They have no more wine.”
Please enlighten us further, what exactly is ‘Westminster donkey-catechism’?
There is a well-known caricature, a donkey teaching something. When a group of people decide to make their own religion at Augsburg, Westminster, Geneva, or Leningrad, the caricature applies. They cannot do that, and they shouldn't have tried.
I hasten to add that I have nothing against the supreme mediatorship of Christ expressed in the prose of article IV cited above. I am, however, opposed to the idea that those assembled at Westminster had any discernible authority to teach.
On the miracle at Cana, of course that is an example of intercession. Mary knows of a want, Mary conveys the want to Christ, Christ listens, ponders and agrees. Intercession. What do you think the context is, wine tasting? Kitchen logistics? Double it plus one rule?