Ignatius of Antioch

Let no man deceive himself: if any one be not within the altar, he is deprived of the bread of God. For if the prayer of one or two possesses such power, how much more that of the bishop and the whole Church! He, therefore, that does not assemble with the Church, has even by this manifested his pride, and condemned himself. For it is written, "God resisteth the proud." Let us be careful, then, not to set ourselves in opposition to the bishop, in order that we may be subject to God.

Epistle of Ignatius to the Ephesians ↗

Clement of Rome

Since, then, we are a holy portion, we should do everything that makes for holiness. We should flee from slandering, vile and impure embraces, drunkenness, rioting, filthy lusts, detestable adultery and disgusting arrogance. "For God," says Scripture, "resists the arrogant but gives grace to the humble." We should attach ourselves to those to whom God's grace has been given. We should clothe ourselves with concord, being humble, self-controlled, far removed from all gossiping and slandering, and justified by our deeds, not by words.

1 Clement 30 ↗

Bede

The Lord gives greater grace than does the friendship of the world, because this grants earthly goods for a time and things that are to be lost with sorrow; he bestows the eternal joy of life. On what sort he bestows this grace, however, he explains in succession. Wherefore he says, "God resists the proud but gives grace to the humble." God indeed punishes thieves, perjurers, dissolute persons, and other sinners, as despisers of his commandments. …

Commentary on the Catholic Epistles, James 4:6 ↗