De Principiis

⁵ Let us now ascertain how those statements which we have advanced are supported by the authority of holy Scripture. The Apostle Paul says, that the only-begotten Son is the “image of the invisible God,” and “the first-born of every creature.” And when writing to the Hebrews, he says of Him that He is “the brightness of His glory, and the express image of His person.” Now, we find in the treatise called the Wisdom of Solomon the following description of the wisdom of God: “For she is the breath of the power of God, and the purest efflux of the glory of the Almighty.” Nothing that is polluted can therefore come upon her. For she is the splendour of the eternal light, and the stainless mirror of God's working, and the image of His goodness. Now we say, as before, that Wisdom has her existence nowhere else save in Him who is the beginning of all things: from whom also is derived everything that is wise, because He Himself is the only one who is by nature a Son, and is therefore termed the Only-begotten.

6. Let us now see how we are to understand the expression “invisible image,” that we may in this way perceive how God is rightly called the Father of His Son; and let us, in the first place, draw our conclusions from what are customarily called images among men. That is sometimes called an image which is painted or sculptured on some material substance, such as wood or stone; and sometimes a child is called the image of his parent, when the features of the child in no respect belie their resemblance to the father. I think, therefore, that that man who was formed after the image and likeness of God may be fittingly compared to the first illustration. Respecting him, however, we shall see more precisely, God willing, when we come to expound the passage in Genesis. But the image of the Son of God, of whom we are now speaking, may be compared to the second of the above examples, even in respect of this, that He is the invisible image of the invisible God, in the same manner as we say, according to the sacred history, that the image of Adam is his son Seth. The words are, “And Adam begot Seth in his own likeness, and after his own image.” Now this image contains the unity of nature and substance belonging to Father and Son. For if the Son do, in like manner, all those things which the Father does, then, in virtue of the Son doing all things like the Father, is the image of the Father formed in the Son, who is born of Him, like an act of His will proceeding from the mind. And I am therefore of opinion that the will of the Father ought alone to be sufficient for the existence of that which He wishes to exist. For in the exercise of His will He employs no other way than that which is made known by the counsel of His will. And thus also the existence of the Son is generated by Him. For this point must above all others be maintained by those who allow nothing to be unbegotten, i.e., unborn, save God the Father only. And we must be careful not to fall into the absurdities of those who picture to themselves certain emanations, so as to divide the divine nature into parts, and who divide God the Father as far as they can, since even to entertain the remotest suspicion of such a thing regarding an incorporeal being is not only the height of impiety, but a mark of the greatest folly, it being most remote from any intelligent conception that there should be any physical division of any incorporeal nature. Rather, therefore, as an act of the will proceeds from the understanding, and neither cuts off any part nor is separated or divided from it, so after some such fashion is the Father to be supposed as having begotten the Son, His own image; namely, so that, as He is Himself invisible by nature, He also begot an image that was invisible. For the Son is the Word, and therefore we are not to understand that anything in Him is cognisable by the senses. He is wisdom, and in wisdom there can be no suspicion of anything corporeal. He is the true light, which enlightens every man that comes into this world; but He has nothing in common with the light of this sun. Our Saviour, therefore, is the image of the invisible God, inasmuch as compared with the Father Himself He is the truth: and as compared with us, to whom He reveals the Father, He is the image by which we come to the knowledge of the Father, whom no one knows save the Son, and he to whom the Son is pleased to reveal Him. And the method of revealing Him is through the understanding. For He by whom the Son Himself is understood, understands, as a consequence, the Father also, according to His own words: “He that has seen Me, has seen the Father also.”

7. But since we quoted the language of Paul regarding Christ, where He says of Him that He is “the brightness of the glory of God, and the express figure of His person,” let us see what idea we are to form of this. According to John, “God is light.” The only-begotten Son, therefore, is the glory of this light, proceeding inseparably from (God) Himself, as brightness does from light, and illuminating the whole of creation. For, agreeably to what we have already explained as to the manner in which He is the Way, and conducts to the Father; and in which He is the Word, interpreting the secrets of wisdom, and the mysteries of knowledge, making them known to the rational creation; and is also the Truth, and the Life, and the Resurrection,— in the same way ought we to understand also the meaning of His being the brightness: for it is by its splendour that we understand and feel what light itself is. And this splendour, presenting itself gently and softly to the frail and weak eyes of mortals, and gradually training, as it were, and accustoming them to bear the brightness of the light, when it has put away from them every hindrance and obstruction to vision, according to the Lord's own precept, “Cast forth the beam out of your eye,” renders them capable of enduring the splendour of the light, being made in this respect also a sort of mediator between men and the light.