Ambrose of Milan : In regard of His Godhead, therefore, the Son of God so hath His own glory, that the glory of Father and Son is one: He is not, therefore, inferior in splendour, for the glory is one, nor lower in Godhead, for the fulness of the Godhead is in Christ. — Exposition of the Christian Faith, Book 2 Ambrosiaster : Because it pleased the Father that in Him all fullness should dwell. The fullness is in Him and remains; because He is always able to accomplish everything, so that nothing is excluded, that cannot be achieved through Him; so that He might create, and reform, and raise up what has fallen, and give life to what is dead. Hence He says: As the Father has life in Himself, so He has given the Son to have life in Himself (John 5:26); and: As the Father raises the dead and gives them life, so also the Son gives life to whom He wills. For the Father does not judge anyone, but has given all judgment to the Son (Ibid., 21, 22). What could be more just than that, unless that he who has done all these things through him should give judgment, so that all the fullness of divinity might dwell in him by virtue of what we have said, that he has all power in himself; that is, he is perfect God; for whoever does not have all these things is not God. — Commentary on Colossians Hippolytus of Rome : There is also unquestionably a certain other (head of the hydra, namely, the heresy) of the Peratae, whose blasphemy against Christ has for many years escaped notice. And the present is a fitting opportunity for bringing to light the secret mysteries of such (heretics). These allege that the world is one, triply divided. And of the triple division with them, one portion is a certain single originating principle, just as it were a huge fountain, which can be divided mentally into infinite segments. Now the first segment, and that which, according to them, is (a segment) in preference (to others), is a triad, and it is called a Perfect Good, (and) a Paternal Magnitude. And the second portion of the triad of these is, as it were, a certain infinite crowd of potentialities that are generated from themselves, (while) the third is formal. And the first, which is good, is unbegotten, and the second is a self-producing good, and the third is created; and hence it is that they expressly declare that there are three Gods, three Logoi, three Minds, three Men. For to each portion of the world, after the division has been made, they assign both Gods, and Logoi, and Minds, and Men, and the rest; but that from unorigination and the first segment of the world, when afterwards the world had attained unto its completion, there came down from above, for causes that we shall afterwards declare, in the time of Herod a certain man called Christ, with a threefold nature, and a threefold body, and a threefold power, (and) having in himself all (species of) concretions and potentialities (derivable) from the three divisions of the world; and that this, says (the Peratic), is what is spoken: "It pleased him that in him should dwell all fulness bodily," and in Him the entire Divinity resides of the triad as thus divided. For, he says, that from the two superjacent worlds-namely, from that (portion of the triad) which is unbegotten, and from that which is self-producing-there have been conveyed down into this world in which we are, seeds of all sorts of potentialities. What, however, the mode of the descent is, we shall afterwards declare. — The Refutation of All Heresies - Book 5 John Chrysostom : "For it was the good pleasure of the Father, that in Him should all the fullness dwell." Whatsoever things are of the Father, these he saith are of the Son also, and that with more of intensity, because that He both became "dead" for, and united Himself to us. He said, "Firstfruits," as of fruits. He said not "Resurrection," but "Firstfruits," showing that He hath sanctified us all, and offered us, as it were, a sacrifice. The term "fullness" some use of the Godhead, like as John said, "Of His fullness have all we received." That is, whatever was the Son, the whole Son dwelt there, not a sort of energy, but a Substance. He hath no cause to assign but the will of God: for this is the import of, "it was the good pleasure...in Him." — Homily on Colossians 3 Tertullian : For how is He before all, if He is not before all things? How, again, is He before all things, if He is not "the first-born of every creature"-if He is not the Word of the Creator? Now how will he be proved to have been before all things, who appeared after all things? Who can tell whether he had a prior existence, when he has found no proof that he had any existence at all? In what way also could it have "pleased (the Father) that in Him should all fulness dwell? " For, to begin with, what fulness is that which is not comprised of the constituents which Marcion has removed from it,-even those that were "created in Christ, whether in heaven or on earth," whether angels or men? which is not made of the things that are visible and invisible? which consists not of thrones and dominions and principalities and powers? If, on the other hand, our false apostles and Judaizing gospellers have introduced all these things out of their own stores, and Martian has applied them to constitute the fulness of his own god, (this hypothesis, absurd though it be, alone would justify him; ) for how, on any other supposition, could the rival and the destroyer of the Creator have been willing that His fulness should dwell in his Christ? To whom, again, does He "reconcile all things by Himself, making peace by the blood of His cross," but to Him whom those very things had altogether offended, against whom they had rebelled by transgression, (but) to whom they had at last returned? Conciliated they might have been to a strange god; but reconciled they could not possibly have been to any other than their own God. — Against Marcion Book V