Dirty Penguin
Master Of Ceremony
Almost every single scene makes use of metaphor and symbolism, as well as literary allusions to the Hebrew scriptures. It demonstrates that Mark did not write down a story that was floating around in oral tradition, but instead took lines from scripture to construct a new story. It was not an uncommon technique. We can see how Matthew and Luke relied on previous writings such as Mark and Q rather than oral tradition. A written tradition rather than an oral is not reason alone to accept the story as a mythology instead of an account of actual and real events, but it's one more piece that adds up.
Maybe there is no "Q" that Mark use rather he just took from the old and added a few herbs and spices of his own (whoever "Mark" was") and voila....there you have it...a new story....