And in another place he expressly states that we shall not all die, but that some shall be transmuted into the Resurrection body without passing through physical death.

And if we turn to the Old Testament we find two instances in which this is said to have actually occurred, those of Enoch and Elijah.

And we may note in passing that the Bible draws our attention to certain facts about these two personages which are important as striking at the root of the notion that austerities of some sort are necessary for the great attainment.

Of Enoch we are expressly told that he was the father of a large family, and of Elijah that he was a man of like nature with ourselves--thus showing us what is wanted is not a shutting of ourselves off from ordinary human life but such a clear realization of the Universal Principle, of which our personal life is the more or less conscious manifestation, that our commonest actions will be hallowed by the Divine Presence; and so the grand denouement will be only the natural result of our daily habit of walking with God.

From the stand-point of the Bible, therefore, the attainment of physical regeneration without passing through death is not an impossibility, nor is it necessarily relegated to some far off future.
Whatever any one else may say to the contrary, the Bible contemplates such a denouement of human evolution as a present possibility.
Then if we argue from the philosophical stand-point we arrive at precisely the same result.