John Chrysostom

"That your faith should not stand in the wisdom of men, but in the power of God." Seest thou how clearly in every way he hath set forth the vast gain of this "ignorance," and the great loss of this "wisdom?" For the latter made void the Cross, but the former proclaimed the power of God: the latter, besides their failing to discover any of those things which they most needed, set them also upon boasting of themselves; the former, besides their receiving the truth, led them also to pride themselves in God. …

Homily on 1 Corinthians 6 ↗

Theophylact of Ohrid

By human wisdom he means persuasiveness and eloquence, while by the power of God, as shown above, he means the strengthening of the weak and the persecuted, as well as the manifestation of signs. It was by these means, O Corinthians, that your faith was established — not by the ability to express oneself persuasively and eloquently, but by the power of God.

Commentary on 1 Corinthians ↗

Clement of Alexandria

Let no man therefore glory on account of pre-eminence in human thought. For it is written well in Jeremiah, "Let not the wise man glory in his wisdom, and let not the mighty man glory in his might, and let not the rich man glory in his riches: but let him that glorieth glory in this, that he understandeth and knoweth that I am the Lord, that executeth mercy and judgment and righteousness upon the earth: for in these things is my delight, saith the Lord." "That we should trust not in ourselves, but in God who raiseth the dead," says …

The Stromata Book 1 ↗

Thomas Aquinas

Thirdly, he assigns the reason for this when he says: that your faith might not rest on the wisdom of men, i.e., not rest on human wisdom which frequently deceives men: "Your wisdom and your knowledge led you astray" (Is 47:10), but on the power of God, i.e., that faith might rest on divine power and so not fall: "I am not ashamed of the gospel: it is the power of God for salvation to everyone who has faith" (Rom 1:16).

Commentary on 1 Corinthians ↗