The Word knew that corruption could not be stopped in people except by inevitable death; it was impossible for the Word, as the immortal and Father's Son, to die. It is for this very reason that He takes upon Himself a body that could die, so that, as a partaker of the Word that exists over all, He may suffer death for all, so that for the sake of the Word that dwells in Him He may remain incorruptible, and so that, finally, corruption in all may be stopped by the grace of the resurrection. Therefore, offering the body He took upon Himself to death, as a sacrifice and slaughter, free from all defilement, by this offering of the likeness in all like, death immediately destroyed death. For the Word of God, being above all, and offering His temple, His bodily instrument at the price of redemption for all, by His death completely fulfilled what was due, and thus, by means of such a body, coexisting with all, the incorruptible Son of God, as it should be, clothed all in incorruption by the promise of resurrection. And corruption itself in death no longer has power over people, for the sake of the Word, Who dwelt in them through one body... The human race would have perished if the Lord and Savior of all, the Son of God, had not come to put an end to death.

(Ibid., 9)

In contrast to the Neoplatonists, who understood salvation as the attainment of the vision of God, St. Athanasius speaks of adoration, i.e. of the attainment of the incorruptible state. Deification is possible only through the incarnation of God the Word, who took on flesh so that we could become bearers of the Spirit:

Who will not marvel at this? Or who will not agree that this is truly God's work? For if the works proper to the Divinity of the Word were not accomplished through the body, then man would not be deified. On the other hand, if the things proper to the flesh were not ascribed to the Word, then man would not be completely freed from it, but although, as we said before, he would be delivered for a short time, nevertheless sin and corruption would still remain in him, as was the case with people who lived before... Many were made holy and pure from all sin: Jeremiah was sanctified from his mother's womb (Jeremiah 1:15), John, who was still in his womb, "leaped with joy" at the voice of the Mother of God (Luke 1:44). However, "death reigned from Adam to Moses, and over those who did not sin, like the transgression of Adam" (Rom. 5:14). And thus, people nevertheless remained mortal, perishable, accessible to the sufferings inherent in nature. But now, since the Word was made man and took on His own flesh, this no longer concerns the body because of the Word that was in the body, but was destroyed by Him, and people no longer remain sinful and dead according to their passions, but, having risen by the power of the Word, remain immortal and incorruptible forever. Therefore, when the flesh is born of the Theotokos Mary, he is called born who gives existence to others, so that we may bear our birth upon Him, and we, as one earth, should not depart into the earth, but, united with the Word which is from heaven, be raised up to heaven from Him. For this reason, it is not without reason that He also transferred to Himself the other infirmities of the body, so that we no longer as men, but as our own to the Word, would become partakers of eternal life. For we no longer die according to our former existence in Adam, but since our being and all bodily infirmities have been transferred to the Word, we rise from the earth after the absolution of the oath for sin by Him Who in us and for us was salted with an oath (curse). And this is fair. As all of us who are from the earth die in Adam, so, having been reborn again by water and the Spirit, we are all made alive in Christ, because our flesh is no longer earthly, as it were, but has been brought into identity with the Word by the Word of God Himself, Who for our sake became flesh.

(Against the Arians. 3:33)

Christology

Athanasius' teaching about Christ clearly reflects the Alexandrian tradition, whose representatives in discussing the Incarnation relied on the text from the fourth Gospel: "And the Word was made flesh." The Antiochian tradition, which competed with the Alexandrian tradition, preferred to speak of the incarnate Word. In Greek, the word "flesh" (sarx) has a connotation that indicates the material aspect of human existence. The expression "The Word was made flesh" can be interpreted as "The Word took on a human body." This is how the Incarnation was understood by Apollinaris of Laodicea (the founder of the heresy of Apolinarism), who, by the way, was a friend of St. Athanasius. Apollinaris taught that in Christ God the Word replaced the soul of the man Jesus. Such an understanding eventually led to the Monophysite heresy, for it clearly belittled the reality of humanity in Christ, denied its fullness, since the fullness of humanity includes the human soul.

On the other hand, the Antiochian teaching about Christ as the incarnate Word could lead to the opposite misunderstanding. namely, to the understanding of the Incarnation as the union of God the Word, who at the same time retained his divine nature, with a specific person, Jesus. Such a theology sees in Christ two persons - divine and human - and ultimately leads to Nestorianism.

Both traditions, Antiochian and Alexandrian, had the same reality in mind. The Evangelist John wrote in Greek, but his way of thinking was Semitic. Therefore, when he used the Greek word "flesh," which has such a material connotation to the Greek listener, he was of course referring to the Hebrew meaning of the word (basar), which encompasses the entire living reality of human existence, both material and spiritual. It is in this sense that St. Athanasius also used the word "flesh." He saw in Christ one Person, the Divine Word, which took on not a separate human person, but human nature. Long before the Council of Ephesus, which confirmed the dogma of the Mother of God, Athanasius called the Virgin Mary the Mother of God. He attributed all the actions of the Savior to God the Word, as a single person. But in affirming the unity of Christ as the incarnate Word, Athanasius, like all the Alexandrians, did not always feel that his terminology opened up the possibility of belittling the human nature of the Saviour, a danger that Apollinaris did not escape.