Some critics argue that the very structure of Mark itself as a written Gospel is used to highlight Jesus's identity as Messiah and also indicate his authority. They see the book as divided between two halves, chapters 1-8 and then chapters 9 until the end. The first half concerns questions of Jesus's identity, culminating in the declaration of Peter that he is the Messiah:
But what about you?” he asked. “Who do you say I am?”
Peter answered, “You are the Messiah.”
Jesus warned them not to tell anyone about him.
Significantly, following this point in the book, Jesus starts his trek towards Jerusalem and his eventual death, and he begins to instruct his disciples about the cross and the kind of death that he is called to die.
In addition, the authority of Jesus is made clear in this gospel through the various miracles he enacts: he heals, brings sight, resurrects a young girl and produces huge amounts of food for everybody. This clearly demonstrates on a number of different levels his authority as the Messiah and the power that is invested within him. This Gospel crucially concerns itself therefore with Jesus's identity and also his power through his miracles.