The Apostle, among other things, says this: “Flesh and blood cannot inherit the kingdom of God” (1 Cor 15:50). All heretics bring forward these words in support of their madness. They try by them to stop us and show that God’s creation has no salvation.
They fail to consider that the perfect man, as I have shown, consists of three things: flesh, soul, and spirit. One of them, the spirit, saves and forms. Another, the flesh, is joined and formed. The soul is between these two.
Sometimes, when it follows the spirit, the soul is raised by it. Sometimes, when it pleases the flesh, it falls into earthly desires.
Therefore all who do not have that which saves and forms unto life will naturally be and will be called flesh and blood. They do not have the Spirit of God in themselves.
For this reason such people are also called dead by the Lord. “Let,” He says, “the dead bury their own dead” (Lk 9:60), because they do not have the Spirit who gives life to man.
On the other hand, all who fear God, believe in the coming of His Son, and through faith plant the Spirit of God in their hearts are rightly called pure, spiritual, and living for God. They have the Spirit of the Father, who cleanses man and raises him into the life of God.
For as “the flesh is weak,” so the spirit is willing, according to the Lord’s testimony (Mt 26:41). For He is strong to accomplish all that He wills.
Therefore, if someone joins the readiness of the spirit, as a stimulus, to the weakness of the flesh, the strong must necessarily overcome the weak. Thus the weakness of the flesh is swallowed up by the strength of the spirit.
Such a man is no longer fleshly but spiritual, through participation in the Spirit. Thus the martyrs give their witness and despise death, not by the weakness of the flesh, but by the willingness of the spirit.
When the weakness of the flesh is swallowed up, it reveals the spirit as powerful. On the other hand, the spirit that swallows up the weakness of the flesh receives the flesh as an inheritance into its own possession.
From both there comes a living man: living by participation in the Spirit, and man by the substance of the flesh.
Therefore flesh without the Spirit of God is dead, since it does not have life. It cannot receive the kingdom of God. Blood is irrational, like water poured upon the earth.
Therefore the Apostle says, “As is the man of dust, so also are those who are of dust.” But where the Spirit of the Father is, there is a living man. There is rational blood, preserved by God for vengeance against those who shed it.
There is flesh taken into possession by the Spirit. It has forgotten itself, but receives the quality of the Spirit and becomes conformed to the Word of God.
Therefore he says, “As we have borne the image of the man of dust, we shall also bear the image of the heavenly Man” (1 Cor 15:48-49). What is earthly? The created flesh. What is heavenly? The Spirit.
Therefore, he says, as without the heavenly Spirit we once lived in the oldness of the flesh, not submitting to God, so now, receiving the Spirit, let us walk in newness of life, obeying God.
Since without the Spirit of God we cannot be saved, the Apostle exhorts us to preserve the Spirit of God through faith and a pure life. Otherwise, deprived of the divine Spirit, we lose the kingdom of heaven.
He therefore cries out that flesh by itself, and blood, cannot inherit the kingdom of God.
If one speaks according to the truth, the flesh does not inherit, but is inherited. Thus the Lord also says, “Blessed are the meek, for they shall inherit the earth” (Mt 5:5). It is as though, in the kingdom, the earth from which the substance of our flesh comes will be received as an inherited possession.
Therefore the Apostle wants the temple to be pure, so that the Spirit of God may delight in it as a bridegroom in a bride.
As a bride cannot take the bridegroom, but can be taken by the bridegroom when he comes and takes her, so this flesh by itself cannot inherit the kingdom of God. It can be taken into it by the Spirit as an inheritance.
The living receives as inheritance the possession of the dead. To inherit is one thing, and to be received as an inheritance is another.
The one who inherits rules and orders what he possesses by inheritance as he wills. The other is under authority, subject to the order and lordship of its possessor.
What lives? The Spirit of God. What is the possession of the dead? The members of man, which also decay in the earth. These are inherited by the Spirit, being transferred into the kingdom of heaven.
For this reason Christ died. The covenant of the Gospel, revealed and proclaimed to the whole world, first freed His servants, and then made them heirs of His property. For, as I have shown, the spirit inherits.
The living inherits, and the flesh is inherited. Lest we lose the Spirit who possesses us, and so lose life, the Apostle exhorts us to communion with the Spirit.
He spoke the words quoted above reasonably, that flesh and blood cannot receive the kingdom of heaven. It is as though he were saying: Do not be deceived. If the Word of God does not dwell in you, and the Spirit of the Father is not in you, and you live vainly and carelessly, as though you were only flesh and blood, you cannot receive the kingdom of God.