1 Corinthians 3:2

2. And on this account does Paul declare to the Corinthians, “I have fed you with milk, not with meat, for hitherto ye were not able to bear it.” That is, ye have indeed learned the advent of our Lord as a man; nevertheless, because of your infirmity, the Spirit of the Father has not as yet rested upon you. “For when envying and strife,” he says, “and dissensions are among you, are ye not carnal, and walk as men?” That is, that the Spirit of the Father was not yet with them, on account of their imperfection and shortcomings of their walk in life. …

As, then, those who have shaken off sleep forthwith become all awake within; or rather, as those who try to remove a film that is over the eyes, do not supply to them from without the light which they do not possess, but removing the obstacle from the eyes, leave the pupil free; thus also we who are baptized, having wiped off the sins which obscure the light of the Divine Spirit, have the eye of the spirit free, unimpeded, and full of light, by which alone we contemplate the Divine, the Holy Spirit flowing down to us from above. This is the eternal adjustment of the vision, which is able to see the eternal light, since like loves like; and that which is holy, loves that from which holiness proceeds, which has appropriately been termed light. “Once ye were darkness, now are ye light in the Lord.” Hence I am of opinion man was called by the ancients φώς . …

But you are not inclined to understand it thus, but perchance more generally. Hear it also in the following way. The flesh figuratively represents to us the Holy Spirit; for the flesh was created by Him. The blood points out to us the Word, for as rich blood the Word has been infused into life; and the union of both is the Lord, the food of the babes, the Lord who is Spirit and Word. The food, that is, the Lord Jesus, that is, the Word of God, the Spirit made flesh, the heavenly flesh sanctified. The nutriment is the milk of the Father, by which alone we infants are nourished. The Word Himself, then, the beloved One, and our nourisher, hath shed His own blood for us, to save humanity; and by Him, we, believing on God, flee to the Word, “the care-soothing breast” of the Father. …

From all this it is therefore evident, that the essential principle of the human body is blood. The contents of the stomach, too, at first are milky, a coagulation of fluid; then the same coagulated substance is changed into blood; but when it is formed into a compact consistency in the womb, by the natural and warm spirit by which the embryo is fashioned, it becomes a living creature. Further also, the child after birth is nourished by the same blood. For the flow of milk is the product of the blood; and the source of nourishment is the milk; by which a woman is shown to have brought forth a child, and to be truly a mother, by which also she receives a potent charm of affection. …

The philosophers did not exert themselves in contemning the appearance of the Lord. It therefore follows that it is the opinion of the wise among the Jews which the apostle inveighs against. Wherefore he adds, “But we preach, as it is written, what eye hath not seen, and ear hath not heard, and hath not entered into the heart of man, what God hath prepared for them that love Him. For God hath revealed it to us by the Spirit. For the Spirit searcheth all things, even the deep things of God.” For he recognises the spiritual man and the Gnostic as the disciple of the Holy Spirit dispensed by God, which is the mind of Christ. …

Akin to this is what the holy Apostle Paul says, preserving the prophetic and truly ancient secret from which the teachings that were good were derived by the Greeks: “Howbeit we speak wisdom among them who are perfect; but not the wisdom of this world, or of the princes of this world, that come to nought; but we speak the wisdom of God hidden in a mystery.” Then proceeding, he thus inculcates the caution against the divulging of his words to the multitude in the following terms: “And I, brethren, could not speak to you as to spiritual, but as to carnal, even to babes in Christ. I have fed you with milk, not with meat: for ye were not yet able; neither are ye now able. For ye are yet carnal.”

13. Thus also the Apostle Paul, when he was urging the merits of peace and charity, and when he was strongly asserting and teaching that neither faith nor alms, nor even the passion itself of the confessor and the martyr, would avail him, unless he kept the requirements of charity entire and inviolate, added, and said: “Charity is magnanimous, charity is kind, charity envieth not;” teaching, doubtless, and showing that whoever is magnanimous, and kind, and averse from jealousy and rancour, such a one can maintain charity. Moreover, in another place, when he was advising that the man who has already become filled with the Holy Spirit, and a son of God by heavenly birth, should observe nothing but spiritual and divine things, he lays it down, and says: “And I indeed, brethren, could not speak unto you as unto spiritual, but as unto carnal, even as unto babes in Christ. …

In Malachi: “Hath not one God created us? Is there not one Father of us all? Why have ye certainly deserted every one his brother?” Of this same thing according to John: “Peace I leave with you, my peace I give unto you.” Also in the same place: “This is my commandment, That ye love one another, even as I have loved you. Greater love than this has no man, than that one should lay down his life for his friends.” Also in the same place: “Blessed are the peacemakers, for they shall be called the sons of God.” Also in the same place: “Verily I say unto you, That if two of you shall agree on earth concerning everything, whatever you shall ask it shall be given you from my Father which is in heaven. …

“ Verily I say unto you there be some of them that stand here that shall not taste of death. ” Some refer these things to the going up, six days after, or, as Luke says, eight days, of the three disciples into the high mountain with Jesus apart; and those who adopt this interpretation say that Peter and the remaining two did not taste of death before they saw the Son of man coming in His own kingdom and in His own glory. For when they saw Jesus transfigured before them so that “His face shone,” etc., “they saw the kingdom of God coming with power.” For even as some spear-bearers stand around a king, so Moses and Elijah appeared to those who had gone up into the mountains, talking with Jesus. …

21. You hear Christ speaking thus in the Gospel: “All things must be fulfilled which were written in the law of Moses, and in the Prophets, and in the Psalms, concerning Me. Then opened He their understanding, that they might understand the Scriptures, and said unto them, Thus it is written, and thus it behoved Christ to suffer, and to rise from the dead the third day; and that repentance and remission of sins should be preached in His name among all nations, beginning at Jerusalem.” You read also in the Acts of the Apostles how this gospel began at Jerusalem, where the Holy Spirit first filled those hundred and twenty persons, and went forth thence into Judæa and Samaria, and to all nations, as He had said unto them when He was about to ascend into heaven, “Ye shall be witnesses unto Me both in Jerusalem, and in all Judæa, and in Samaria, and unto the uttermost parts of the earth;” for …

If, on account of the Christian people in whom the city of God sojourns in the earth, we look for the flesh of Christ in the seed of Abraham, setting aside the sons of the concubines, we have Isaac; if in the seed of Isaac, setting aside Esau, who is also Edom, we have Jacob, who also is Israel; if in the seed of Israel himself, setting aside the rest, we have Judah, because Christ sprang of the tribe of Judah. Let us hear, then, how Israel, when dying in Egypt, in blessing his sons, prophetically blessed Judah. He says: “Judah, thy brethren shall praise thee: thy hands shall be on the back of thine enemies; thy father’s children shall adore thee. …

3. Further, it is difficult to contemplate and fully know the substance of God; who fashions things changeable, yet without any change in Himself, and creates things temporal, yet without any temporal movement in Himself. And it is necessary, therefore, to purge our minds, in order to be able to see ineffably that which is ineffable; whereto not having yet attained, we are to be nourished by faith, and led by such ways as are more suited to our capacity, that we may be rendered apt and able to comprehend it. And hence the Apostle says, that “in Christ indeed are hid all the treasures of wisdom and knowledge;” and yet has commended Him to us, as to babes in Christ, who, although already born again by His grace, yet are still carnal and psychical, not by that divine virtue wherein He is equal to the Father, but by that human infirmity whereby He was crucified. …