MorleyMcMorson wrote:
1. Corporeality probably cannot be considered essential to humanity if Christianity is correct. The Bible, many argue and I agree, teaches that there is an intermediate state in which people exist incorporeally. I don't see the problem with the other alternative. Christians can obviously claim that Christ's taking on humanity entailed more than (or other than) his taking on human flesh, DNA, or whatever.
2. I think the major problem is the one Howard-Snyder points out: you can't both claim that persons are essentially souls, claim the Trinity is three persons, and then claim that the Trinity is just one soul. As for substances, you could pretty much say anything since substance-talk is rather abstruse.
1. The problem with the other alternative would be resolved if, as you suggest, that Christ's taking on humanity entailed more than his taking on a human body. But then it becomes tricky explaining how this might work without positing that Christ had a human as well as a divine mind, which makes it tricky to fend of nestorianism.
I believe Craig's view on this issue is that having a body or having once had a body is a necessary property of humanity. That might be another way to approach the problem.
2. Some other possible solutions to this problem that I have been entertaining are these:
a) perhaps having a soul is only essential to being human insofar as it allows a human to have attributes such as consciousness, rationality, volition (etc.). If this is so, then perhaps we can think of the union of the mind of the Logos with a body being sufficient for a human nature without maintaining that the entire soul of the trinity was in some sense incarnated.
b) Another possible option is to think of the entire soul that is the trinity becoming the soul of the human nature of Christ, but we avoid the incarnation of the entire trinity by positing that a center of consciousness is not a human person unless it is united with a body. For on this view it would remain true that only one divine center of consciousness was incarnated.