John Chrysostom

"Because the carnal mind is enmity against God:" and this is worse than death. Then to show how it is at once death and enmity; "for it is not subject to the Law of God," he says, "neither indeed can be." But be not troubled at hearing the "neither indeed can be." For this difficulty admits of an easy solution. For what he here names "carnal mindedness" is the reasoning that is earthly, gross, and eager-hearted after the things of this life and its wicked doings. It is of this he says "neither yet can" it "be subject" to God. …

Homily on Romans 13 ↗

Theophylact of Ohrid

The spiritual mind produces peace, while the carnal mind produces enmity against God. Does this mean, then, that the carnal mind takes up arms against God? No, he says; but it is said to be enmity against God because it is not subject to His law. Do not be troubled, however, upon hearing "neither indeed can be," but understand these words as you ought. The carnal mind cannot be subject to God as long as it remains such. This is the same as saying: a harlot cannot be chaste. …

Commentary on Romans ↗

Thomas Aquinas

In the preceding section, the Apostle had presupposed that the prudence of the flesh is death, and here he intends to prove this. And first, he proves it; second, he shows that the believers to whom he writes are immune to such prudence, at "but you are not." In regard to the first he does two things. …

Commentary on Romans ↗

Bernard of Clairvaux

"Flesh and blood have surely revealed this wisdom to you, not the Spirit of the Father"; for this is "the wisdom of the flesh." But hear what our physicians think of it. "The wisdom of the flesh," they say, "is death"; likewise: "The wisdom of the flesh is hostile to God" (Rom 8:6-7). Ought I to have set before you the opinion of Hippocrates or Galen, or surely from the school of Epicurus? I am a disciple of Christ; I speak to disciples of Christ: if I introduce a foreign doctrine, I myself have sinned. …

Sermons on the Song of Songs, Sermon 30 ↗