“The Saviour having in very truth become Man, the salvation of THE WHOLE MAN was brought about.” – St. Athanasius, Letter to Epictetus.
“Truly our salvation is not merely apparent, nor does it extend to the body only, but the whole man, body and soul alike, has truly obtained salvation in the Word Himself. That then which was born of Mary was according to the divine Scriptures human by nature, and the Body of the Lord was a true one; but it was this, because it was the same as our body.” – St. Athanasius, Letter to Epictetus.
“Believe then that this Only-begotten Son of God for our sins came down from heaven upon earth, and took upon Him this human nature of like passions with us, and was begotten of the Holy Virgin and of the Holy Ghost, and was made Man, not in seeming and mere show, but in truth; nor yet by passing through the Virgin as through a channel; but was of her made truly flesh, and did truly eat as we do, and truly drink as we do. FOR IF THE INCARNATION WAS A PHANTOM, SALVATION IS A PHANTOM ALSO. The Christ was of two natures, Man in what was seen, but God in what was not seen; as Man truly eating like us, for He had the like feeling of the flesh with us; but as God feeding the five thousand from five loaves (Mt 14:17 ff.).” St. Cyril of Jerusalem, Catecheses, No. 4:9.
“If, then, the sojourn of the Lord in flesh has never taken place, the Redeemer paid not the fine to death on our behalf, nor through Himself destroyed death’s reign. For if was was reigned over by death was not that which was assumed by the Lord, death would not have ceased working his own ends, nor would the sufferings of the God-bearing flesh have been made our gain; He would not have killed sin in the flesh; we who have died in Adam should not have been made alive in Christ; the fallen to pieces would not have been framed again; the shattered would not have been set up again; that which by the serpent’s trick had been estranged from God would never have been made once more His own.” – St. Basil, Letters, No. 261:2
“For that which He has not assumed He has not healed.” – St. Gregory Nazianzen, Letters, No. 101.
“If only half Adam fell, then that which Christ assumes and saves may be half also; but if the whole of his nature fell, it must be united to the whole nature of Him that was begotten, and so be saved as a whole.” – St. Gregory Nazianzen, Letters, No. 101
“For the purpose of God the Word becoming man was that the very same nature, which had sinned and fallen and become corrupted, should triumph over the deceiving tyrant and so be freed from corruption.” – St. John of Damascus, Exposition of the Orthodox Faith, Bk. 3, Chap. 12.
“Let Christ raise you by that which is man, lead you by that which is God-man, and guide you through to that which is God.” – St. Augustine, On the Gospel of St. John, Tr. 23:6