Ephesians 3:4

It is He who truly shows how we are to know ourselves. It is He who reveals the Father of the universe to whom He wills, and as far as human nature can comprehend. “For no man knoweth the Son but the Father, nor the Father but the Son, and he to whom the Son shall reveal Him.” Rightly, then, the apostle says that it was by revelation that he knew the mystery: “As I wrote afore in few words, according as ye are able to understand my knowledge in the mystery of Christ.” “According as ye are able,” he said, since he knew that some had received milk only, and had not yet received meat, nor even milk simply. The sense of the law is to be taken in three ways, either as exhibiting a symbol, or laying down a precept for right conduct, or as uttering a prophecy. But I well know that it belongs to men [of full age] to distinguish and declare these things. …

Rightly, therefore, the divine apostle says, “By revelation the mystery was made known to me (as I wrote before in brief, in accordance with which, when ye read, ye may understand my knowledge in the mystery of Christ), which in other ages was not made known to the sons of men, as it is now revealed to His holy apostles and prophets.” For there is an instruction of the perfect, of which, writing to the Colossians, he says, “We cease not to pray for you, and beseech that ye may be filled with the knowledge of His will in all wisdom and spiritual understanding; that ye may walk worthy of the Lord to all pleasing; being fruitful in every good work, and increasing in the knowledge of God; strengthened with all might according to the glory of His power.” And again he says, “According to the disposition of the grace of God which is given me, that ye may fulfil the word of God; the mystery whic …

Now this (mystery) was not made known to previous generations, as he says, it has been written, “By revelation was made known unto me the mystery;” and, “I have heard inex pressible words which it is not possible for man to declare.” The light, (therefore) which came down from the Ogdoad above to the Son of the Hebdomad, descended from the Hebdomad upon Jesus the son of Mary, and he had radiance imparted to him by being illuminated with the light that shone upon him. …

Chapter 14. 16. Accordingly we find the apostles using the expressions, "My glorying," though it was certainly in the Lord; and "Mine office," and "My knowledge," and "My gospel," although it was confessedly bestowed and given by the Lord; but no one of them ever once said, "My baptism." For neither is the glorying of all of them equal, nor do they all minister with equal powers, nor are they all endowed with equal knowledge, and in preaching the gospel one works more forcibly than another, and so one may be said to be more learned than another in the doctrine of salvation itself; but one cannot be said to be more or less baptized than another, whether he be baptized by a greater or a less worthy minister. …

Ver. 4 . “Whereby, when ye read, ye can perceive.”

And having written thus much, he said this was little, in comparison with what he was going to say. As he says also in another place, “As I wrote to you in few words: whereby when ye read, ye may understand my knowledge in the mystery of Christ.” ( Eph. iii. 3, 4 .)