You seem to be suggesting (with your reference to 1500 years) that the immortality of the soul is a post-biblical notion. Again, I agree. I wonder, though, if the reason this doctrine developed had less to do with God’s eternal nature, and more to do with the delay of Christ’s return and the restoration of all creation.

An interesting idea. My present view is that it has more to do with anti-semitism: the loss of Jewish interpretive framework and the adoption of Greek, in particular Platonic (and self-important) thought into Christianity. Augustine expressly admits reliance on Plato but I am sure that it existed before his time too. The eternal soul was of course a Platonic concept. I find it interesting though that if anything the influence of Stoicism was much more noticeable in the New Testament writings and this would probably have been more acceptable as a world view to the early Christians than Plato, given a choice between the two.

for the revelation of Jesus trumping the revelation of the OT—yes, I do believe that when there are seemingly irreconcilable differences between the witness of Jesus and the witness of the OT (such as on the subject of genocide), Jesus trumps the OT. 

As I previously hinted, I don’t see that there is a contradiction between the two. This is partly because on purely analytical arguments, (see my response to Graham for example) they can be harmonised (though the debate is likely to be endless) but more importantly because I look at God from a historical viewpoint, not a theoretical (or idealistic) one.