John Chrysostom

"For we are not as the rest, which corrupt the word of God." 'For even if we use great sounding words, yet we declared nothing to be our own that we achieved, but all Christ's. For we will not imitate the false apostles; the men who say that most is of themselves.' For this is "to corrupt," when one adulterates the wine; when one sells for money what he ought to give freely. …

Homily 5 on 2 Corinthians ↗

Theophylact of Ohrid

Here he points to the false apostles, who regarded the grace of God as their own work. Therefore, he says, I said: "who is sufficient?" – and ascribed everything to God, that I am not like the false apostles, I do not corrupt or distort the gift of God. He hints that they mix the contrivances of worldly wisdom into the evangelical teaching and try to sell for money what should be given freely. But we are not like that. Therefore he adds the following. …

Commentary on 2 Corinthians ↗

Ignatius of Antioch

For some are in the habit of carrying about the name [of Jesus Christ] in wicked guile, while yet they practise things unworthy of God, whom ye must flee as ye would wild beasts. For they are ravening dogs, who bite secretly, against whom ye must be on your guard, inasmuch as they are men who can scarcely be cured. There is one Physician who is possessed both of flesh and spirit; both made and not made; God existing in flesh; true life in death; both of Mary and of God; first possible and then impossible, even Jesus Christ our Lord.

Epistle of Ignatius to the Ephesians ↗

Thomas Aquinas

Hence, he says, for we are not, like so many, namely, the false apostles, peddlers of God's word, mingling contrary doctrines, as the heretics, who although they confess Christ, do not admit that he is true God. This is what the false apostles do, who say that along with the Gospel the legal observances must be kept. Hence he says, for we are not, like so many, peddlers of God's word, i.e., preaching for gain or for praise. …

Commentary on 2 Corinthians ↗