For as those bodies of ours, that have a living soul, though not as yet a quickening spirit, are called soul-informed bodies, and yet are not souls but bodies, so also those bodies are called spiritual,—yet God forbid we should therefore suppose them to be spirits and not bodies,—which, being quickened by the Spirit, have the substance, but not the unwieldiness and corruption of flesh. Man will then be not earthly but heavenly,—not because the body will not be that very body which was made of earth, but because by its heavenly endowment it will be a fit inhabitant of heaven, and this not by losing its nature, but by changing its quality. The first man, of the earth earthy, was made a living soul, not a quickening spirit,—which rank was reserved for him as the reward of obedience. And therefore his body, which required meat and drink to satisfy hunger and thirst, and which had no absolute and indestructible immortality, but by means of the tree of life warded off the necessity of dying, and was thus maintained in the flower of youth,—this body, I say, was doubtless not spiritual, but animal; and yet it would not have died but that it provoked God's threatened vengeance by offending. And though sustenance was not denied him even outside Paradise, yet, being forbidden the tree of life, he was delivered over to the wasting of time, at least in respect of that life which, had he not sinned, he might have retained perpetually in Paradise, though only in an animal body, till such time as it became spiritual in acknowledgment of his obedience.