John Chrysostom

"Seeing that ye have put off the old man with his doings, and have put on the new man, which is being renewed unto knowledge after the image of Him that created him." It is worth enquiring here, what can be the reason why he calls the corrupt life, "members," and "man," and "body," and again the virtuous life, the same. And if "the man" means "sins," how is it that he saith, "with his doings"? For once he said, "the old man," showing that this is not man, but the other. …

Homily on Colossians 8 ↗

Gregory of Nyssa

For we say that those things are alive which spring up and grow, and no one would deny that all things that participate in life and natural motion are animate, yet at the same time one cannot say that such life partakes of a perfect soul,—for though a certain animate operation exists in plants, it does not attain to the motions of sense; and on the other hand, though a certain further animate power exists in the brutes, neither does this attain perfection, since it does not contain in itself the grace of reason and intelligence. …

On the Making of Man ↗

Theophylact of Ohrid

You have clothed yourselves in Christ, who said: "I am the truth" (John 14:6). How then can you now clothe yourselves in another form of garment, the form of falsehood? Then it will be evident that you are casting off that form (as it were, the uniform) which characterizes you with the mark of truth. Why did he, having named the members, the body, and the man of a corrupt life, again call the same thing virtuous? To show that freedom in man is more important than essence, that we are named rather by it than by essence. …

Commentary on Colossians ↗

Augustine of Hippo

Elsewhere, too, he has even more plainly called it an image, while enforcing the same thing in other words. "Do you," he says, "putting off the old man with his deeds, put on the new man, which is renewed in the knowledge of God after the image of Him that created him." Where the one passage reads, "Put ye on the new man, which is created after God," the other has, "Put ye on the new man, which is renewed after the image of Him that created him." In the one place he says, "After God;" in the other, "After the image of Him that …

On the Trinity, Book 14 ↗

Ambrose of Milan

But since the Father, the Son, and the Holy Spirit are of one Nature, the Father certainly will not be in subjection to Himself. And therefore the Son will not be in subjection in that in which He is one with the Father; lest it should seem that through the unity of the Godhead the Father also is in subjection to the Son. …

Exposition of the Christian Faith, Book 5, Chapter 13.174-175 ↗

Thomas Aquinas

Then when he says, seeing that you have put off the old nature, he shows why the vices he has just mentioned must be avoided, the reason being that when one puts off what is old, he should put on what is new: "No one sews an old patch on a new garment," as we read in Matthew (9:16). First, he talks of putting off what is old, secondly, of putting on what is new (v. 10). …

Commentary on Colossians ↗