1Cor 15:46

“For the breath of life, which also rendered man an animated being, is one thing, and the vivifying Spirit another, which also caused him to become spiritual. And for this reason Isaiah said, "Thus saith the Lord, who made heaven and established it, who founded the earth and the things therein, and gave breath to the people upon it, and Spirit to those walking upon it;" thus telling us that breath is indeed given in common to all people upon earth, but that the Spirit is theirs alone who tread down earthly desires. And therefore Isaiah himself, distinguishing the things already mentioned, again exclaims, "For the Spirit shall go forth from Me, and I have made every breath." Thus does he attribute the Spirit as peculiar to God which in the last times He pours forth upon the human race by the adoption of sons; but [he shows] that breath was common throughout the creation, and points it out as something created. Now what has been made is a different thing from him who makes it. The breath, then, is temporal, but the Spirit eternal. The breath, too, increases [in strength] for a short period, and continues for a certain time; after that it takes its departure, leaving its former abode destitute of breath. But when the Spirit pervades the man within and without, inasmuch as it continues there, it never leaves him. "But that is not first which is spiritual," says the apostle, speaking this as if with reference to us human beings; "but that is first which is animal, afterwards that which is spiritual," in accordance with reason.”

“First of all there comes the (natural) soul, that is to say, the breath, to the people that are on the earth,-in other words, to those who act carnally in the flesh; then afterwards comes the Spirit to those who walk thereon,-that is, who subdue the works of the flesh; because the apostle also says, that "that is not first which is spiritual, but that which is natural, (or in possession of the natural soul, ) and afterward that which is spiritual." For, inasmuch as Adam straightway predicted that "great mystery of Christ and the church," when he said, "This now is bone of my bones, and flesh of my flesh; therefore shall a man leave his father and his mother, and shall cleave unto his wife, and they two shall become one flesh," he experienced the influence of the Spirit.”

“In short, since it is not the soul, but the flesh which is "sown in corruption," when it turns to decay in the ground, it follows that (after such dissolution) the soul is no longer the natural body, but the flesh, which was the natural body, (is the subject of the future change), forasmuch as of a natural body it is made a spiritual body, as he says further down, "That was not first which is spiritual." For to this effect he just before remarked of Christ Himself: "The first man Adam was made a living soul, the last Adam was made a quickening spirit.”

“But again: if the beginning passes on to the end (as Alpha to Omega), as the end passes back to the beginning (as Omega to Alpha), and thus our origin is transferred to Christ, the animal to the spiritual-inasmuch as "(that was) not first which is spiritual, but (that) which (is) animal; then what (is) spiritual," -let us, in like manner (as before), see whether you owe this very (same) thing to this second origin also: whether the last Adam also meet you in the selfsame form as the first; since the last Adam (that is, Christ) was entirely unwedded, as was even the first Adam before his exile.”

“"For that is not first," saith he, "which is spiritual, but that which is natural, then that which is spiritual." And he saith not, why, but is content with the ordinance of God, having the evidence from the facts testifying to that most excellent oeconomy of God, and implying that our state is always going forward to the better; at the same time by this also adding credibility to his argument. For if the lesser have come to pass, much more ought we to expect the better.”

“What then is designated by John except the Synagogue, what by Peter except the Church? Nor should it seem strange that the Synagogue is said to be signified by the younger and the Church by the elder, because even if the Synagogue is prior to the Church of the Gentiles in the worship of God, nevertheless the multitude of the Gentiles is prior to the Synagogue in the practice of the world, as Paul attests when he says: "Because what is spiritual is not first, but what is natural." Therefore by the elder Peter is signified the Church of the Gentiles, but by the younger John the Synagogue of the Jews.”

“So that no one would say: why do we now have a natural body, an inferior one, while the spiritual one is only yet to come? he says: because the origins of the one and the other have been established in that order. Adam came first, and Christ came after. Therefore our course always moves toward the better. And be assured that what is now corruptible and inferior in you will be transformed into the incorruptible and the better.”

“994. – But someone might say, If Christ was made a life-giving spirit, why is he called "last"? Therefore, accordingly, when he says, but it is not the spiritual which is first, he shows the order of principles. We see in nature that in one and the same thing, the imperfect is prior to the perfect. And so since the spiritual state is situated with respect to the animal state, as the perfect to the imperfect, then in human nature the spiritual must not be prior, which is the perfect, but so that order might be preserved, the imperfect must be first, namely, what is animal, then the perfect, namely, what is spiritual: "But when the perfect comes, the imperfect will pass away" (1 Cor 13:10). As Augustine says, the sign of this is that the firstborn of antiquity are commonly "animal", as Cain was born before Abel, Ishmael before Isaac, and Esau before Jacob.”