Simon J. Gathercole, in his strongly provocative work The Pre-Existent Son: Recovering the Christologies of Matthew, Mark, and Luke argues, more or less, from the starting point I mentioned yesterday over here. 
He starts with Paul, by arguing the likelihood of his influence on the Gospels. He then shows that when one assumes a Christology of divine identity, originally argued by Richard Bauckham in Paul, Hebrews, and Revelation, that many of the actions of Jesus in the synoptics (forgiving sins, controlling nature without calling on God, election of followers, etc…) actually point to Jesus being as sharing in the divine identity of God.
After doing this, he then convincingly shows by extensively arguing that the “I have come” sayings actually denoting pre-existence within the synoptic tradition.
Though I’m not finished with this book, from what I’ve seen so far, he argues his case quite convincingly. I do have some reservations with some of his conclusions. And at times he seems almost like an apologist by trying to grab at different texts to show the probability of his case being true. Even though I suspected this, he seems to be very honest when something doesn’t favor his case.
Our friend, Nick Norelli, has shared with us recordings where Gathercole presents his case in a summarized talk on the case he presents in the book.
You can listen to them at his blog, or you can hear them here.
Gathercole: \”I have come\” part 1.
Gathercole: \”I have come\” part 2.
