Good thread, had a question arise while reading:
Curious, if there was a war and bodies were vaporized or reduced to ash by certain high class bombs .. would God (in Orthodox theology) be able to resurrect those people too?
Absolutely. God is omnipotent. Also, by the way, this is not unscientific - two of the most well-tested principles of physics are mass-energy equivalence (in Special Relativity), and even before that, going back to the 17th century, conservation of energy.
So you can’t actually completely erase a human from existence in the universe, unless you are God, since He alone is omnipotent and able to do something like that, although as far as I am aware of He has never done this, and I don’t think there is any scriptural or patristic basis for saying that He ever will - indeed, that is the heresy of Annhilationism, taught by some sects on the fringes of Christianity. Rather, if someone is killed, and their body partially or entirely destroyed, whether through cremation or another means, such as a nuclear weapon, no matter how extreme the change, what has happened is that their bodies have merely been reconfigured, converted in part or in whole to energy.
The reason for rejecting cremation is because of its association with paganism, and also the fact that it disrespects the divine image of human beings. Since we are created in the image of God, when one destroys a human, one is engaging the supreme act of Iconoclasm, destroying the image of God.
However, I do not believe that the many Protestants, including a great many of my relatives, intended to do this, and I pray for God to save them. I even know an Anglican bishop, who is a very decent Christian, and a veteran of the Korean War who wants to be cremated, on the basis of avoiding iconoclasm, because of a traumatic experience in the war of jumping into a pit filled with dead soldiers, who had begun to decompose, during a firefight. So for him, the stress of that means that to preserve the divine image, in his specific case, he feels that he must be cremated, even though, in accordance with her beliefs, he buried his Armenian Orthodox wife. Please pray for him - his name is David. I am trying to help him through this, but I don’t know if I can, due to the severe trauma. He is closely connected to both Oriental and Eastern Orthodoxy, in that his son also married a Romanian Orthodox woman, one of whose relatives, who was a communist, recently died, which was regarded as tragic because of his practice of the communist religion.