"I say again." The whole speech shows how compelled Saint Paul is when he speaks praise of himself. It is visibly contrary to his disposition and heart, but necessity forces him to act against himself. He began "to compare mutually his own merits and the evil deeds of his opponents, so that by such comparison the illegitimate teachers might be exposed" (Chrysostom). This was extremely necessary for the Corinthians, for nothing better could turn them away from the false teachers. He had already said something of this kind. "Now, intending again to praise himself, he first again reproves the false apostles, so that they may see what necessity makes him touch this subject, and so that no one can reproach him for speaking about himself. He had already made many reservations before, but, not content with what was said before, he says, I repeat again: Let no one think me a fool. Do not think that I do this without reasonable grounds. For this is what the false apostles did: they boasted without any cause. Boasting is unreasonable, he says, but I do this not from lack of reason, but from necessity. Therefore, even if you do not believe me, and even if, seeing the necessity, you still condemn me, I will not renounce my task. Do you see how he showed that there was a great necessity to speak? If he was not frightened even by this suspicion, then consider with what compulsion he intended to speak, how he suffered and forced himself when he spoke" (Chrysostom).
"It happens that someone speaks a word of folly without being foolish and without thereby committing a foolish deed. The foolish man is one who speaks grandly of himself in vain and boasts idly. Such a man, in his foolishness, not only utters words of folly, but also performs the deed of a fool. But one who speaks about himself, even of great things, if they are true and for the benefit of souls, seems to speak words of folly by the similarity of the utterance. Yet he is not foolish. On the contrary, he is very prudent and performs a deed proper to the wisest man, when for the benefit and salvation of others he disregards even being reproached for folly. Therefore he says, 'Let no one think me a fool.' I say what I say not for myself, but for you, compelled by the need to turn you away from the false apostles" (someone in Oecumenius, perhaps Photius).
"But if not," that is, if you cannot look at my deed and word in this way, and despite my assurance still consider my word of self-praise an act of folly, "receive me at least as a fool." The turn of speech is subtle, reproving, and persuasive. The false apostles came to the Corinthians and told them who knows what about themselves. They were received and honored, and their word was not despised or rejected. The Apostle, placing himself in their ranks as a fool, both exposes their folly and reproaches those who received them in folly. By both means he prepares the way for his own word, so that they may not think he acts from foolishness.
That he is truly transferring from himself to the false teachers the reproach of foolish self-exaltation is clear from the following words: "that I too may boast a little." "That I too" means: they boast, and you listen, so allow me also to boast. "A little" means: they boast much and without measure, so allow me at least to boast a little. "May boast" means: they boasted much, vainly, and in trifles. What Saint Paul said about himself was true, precious, and profitable for the soul. All this was known also to the Corinthians. It was also known to them that the self-praise of the false teachers did not correspond to reality. Keeping this in mind, what a strong exposure of those teachers they saw. What an impressive correction for themselves, and what a bright and consoling justification of Saint Paul in his pointing to his praiseworthy works. "If you do not believe, and despite the necessity for me to speak in this way still consider me not free from folly, then receive me as one speaking foolishly what I say, so that I too may boast, as the false apostles boast. For they compel me to speak such words by boasting to your harm" (the same author in Oecumenius).