It is sown a natural body; it is raised a spiritual body. There is a natural body, and there is a spiritual body.
All Commentaries on 1 Corinthians 15:44 Go To 1 Corinthians 15
Augustine of Hippo
AD 430
As the Spirit, when it serves the flesh, is not improperly said to be carnal, so the flesh, when it serves the spirit, will rightly be called spiritual—not because changed into spirit, as some suppose who misinterpret the text, “What is sown a natural body rises a spiritual body,” but because it will be so subject to the spirit that, with a marvelous pliancy of perfect obedience, it will accept the infallible law of its indissoluble immortality, putting aside every feeling of fatigue, every shadow of suffering, every sign of slowing down. This “spiritual body” will not only be better than any body on earth in perfect health but will surpass even that of Adam or Eve before their sin.