Theophylact of Ohrid

Righteousness is a property of the soul that renders to each his due, and: "wrath destroys even the prudent" (Prov. 15:1). How then can it, darkening the mind in its passionate excess, constitute the virtue that judiciously renders to each his due? Note also that the apostle did not simply speak of one who "does not produce the righteousness of God," but of one who exerts himself in what is destructive to himself. …

Commentary on James ↗

Gregory the Dialogist

For whereas the agitated mind works up to harshness the decision of its reasoning faculty, all that rage suggests, it accounts to be right.

Morals on the Book of Job 5.78 ↗

Bede

For the anger of man does not produce the righteousness of God. The meaning is clear, because whoever rashly subjects himself to the sin of anger, even if he appears just to men, is not yet perfectly just in the divine judgment. But it can be understood more profoundly, because it is said of the Lord: "But you, Lord of hosts, judge with tranquility" (Wisdom XII). Any human judge who judges a delinquent with a disturbed mind, even if he judges justly, cannot imitate the justice of divine judgment, into which disturbance does not enter.

Commentary on the Catholic Epistles ↗