John Chrysostom

"For ye bear with the foolish gladly." 'So that ye are to blame for this, and more than they. For if ye had not borne with them, and so far as it lay in them received damage, I would not have spoken a word; but I do it out of a tender care for your salvation, and in condescension. And behold, how he accompanies even his censure with praise. For having said, "ye bear with the foolish gladly;" he added, "Being wise yourselves." For it was a sign of folly to glory, and on such matters. …

Homily 24 on 2 Corinthians ↗

Theophylact of Ohrid

You, he says, compel me to say this; for if you had not received them and I had not seen from this that you had fallen into error, I would not have come to this. By foolish he means those who boast in fleshly things. For if boasting in spiritual things is a sign of folly, how much more so boasting in things that do not exist. The words "sensible people" seem flattering, yet they contain the highest degree of censure, because, possessing knowledge, he says, you err; for if you were foolish, you would be worthy of indulgence.

Commentary on 2 Corinthians ↗

Theonas of Alexandria

And do thou, my dearest Lucianus, since thou art wise, bear with good-will the unwise; and they too may perchance become wise.

The Epistle of Theonas, Bishop of Alexandria, to Lucianus, the Chief Chamberlain ↗

Thomas Aquinas

Then he tells why they should bear with him, saying: you gladly bear with fools, being wise yourselves. First, he gives this reason, namely, that they should bear with him. For they could say: Why should we bear with you, if you are foolish? And the Apostle says that the reason is this: since you yourselves are wise in your own eyes and in your reputation, you gladly bear with, i.e., are wont to bear with, fools, namely, the false apostles.

Commentary on 2 Corinthians ↗