But that was not first which is spiritual, but that which is natural; and afterward that which is spiritual.
All Commentaries on 1 Corinthians 15:46 Go To 1 Corinthians 15
Augustine of Hippo
AD 430
The spiritual body is understood as a body so subject to spirit that it may be suited to its celestial habitation, all earthly weakness and corruption and being changed and converted into celestial purity and stability.