1 Corinthians 3:18

"Let no man deceive himself; if any man thinketh that he is wise in this world, let him become a fool." As he bids one become, as it were, dead unto the world;-and this deadness harms not at all, but rather profits, being made a cause of life:-so also he bids him become foolish unto this world, introducing to us hereby the true wisdom. Now he becomes a fool unto the world, who slights the wisdom from without, and is persuaded that it contributes nothing towards his comprehension of the faith. As then that poverty which is according to God is the cause of wealth, and lowliness, of exaltation, and to despise glory is the cause of glory; so also the becoming a fool maketh a man wiser than all. For all, with us, goes by contraries. Further: why said he not, "Let him put off wisdom," but, "Let him become a fool?" That he might most exceedingly disparage the heathen instruction. For it was not the same thing to say, "Lay aside thy wisdom," and, "become a fool." And besides, he is also training people not to be ashamed at the want of refinement among us; for he quite laughs to scorn all heathen things. And for the same sort of reason he shrinks not from the names, trusting as he does to the power of the things which he speaks of. Wherefore, as the Cross, though counted ignominious, became the author of innumerable blessings, and the foundation and root of glory unspeakable; so also that which was accounted to be foolishness became unto us the cause of wisdom. For as he who hath learned anything ill, unless he put away the whole, and make his soul level and clear, and so offer it to him who is to write on it, will know no wholesome truth for certain; so also in regard of the wisdom from without. Unless thou turn out the whole and sweep thy mind clear, and like one that is ignorant yield up thyself unto the faith, thou wilt know accurately nothing excellent. […]

Then when he says, Let no man, he excludes an opposite error. First, he warns the faithful to be careful not to be deceived by error; secondly, he teaches how to be careful (v. 18); thirdly, he assigns the reason (v. 19). In regard to …

Those who are tiny of body and those who, being wise in the world, abandon their knowledge and … become like babes of their own free will, will learn a wisdom which is not learned through study's labors.

Thinking that this happens otherwise, and not as I said.

Having made a slight allusion to the one who sinned, he again turns his speech to those who were puffed up with worldly wisdom. Whoever, he says, "thinks himself to be wise in this age, let him become a fool," that is, let him cast …

He must be sensible of his own ignorance, and lament it; he must distrust his own understanding, and not lean on it. To have a high opinion of our wisdom is but to flatter ourselves, and self-flattery is the very next step to self-deceit. The way to true wisdom is to sink our opinion of our own to a due level, and be willing to be taught of God.

Let no man deceive himself,.... With vain notions of serving God and religion, and of doing the churches good by his carnal and worldly wisdom, and with false hopes of escaping the vengeance of God for sowing the tares of error, heresy, and discord among his people.

If any man among you seemeth to be wise - Ει τις δοκει σοφος ειναι· If any pretend or affect to be wise. This seems to refer to some individual in the Church of Corinth, who had been very troublesome to its peace and unity: probably Diotrephes (see on 1Co 1:14 (note)) or some one of a similar spirit, who wished to have the pre-eminence, and thought himself wiser than seven men that could render a reason. Every Christian Church has less or more of these.

seemeth--that is, is, and is regarded by himself and others. wise in this world--wise in mere worldly wisdom (1Co 1:20). let him become a fool--by receiving the Gospel in its unworldly simplicity, and so becoming a fool in the world's sight [ALFORD].

quarantine:debris (2026-07-29) — starts-lowercase

Let no man deceive himself - The apostle here proceeds to make a practical application of the truths which he had stated, and to urge on them humility, and to endeavor to repress the broils and contentions into which they had fallen. Let no man be puffed up with a vain conceit of his own wisdom, for this had been the real cause of all the evils which they had experienced. Grotius renders this, “See that you do not attribute too much to your wisdom and learning, by resting on it, and thus deceive your own selves.” “All human philosophy,” says Grotius, “that is repugnant to the gospel is but vain deceit” - Probably there were many among them who would despise this admonition as coming from Paul, but he exhorts them to take care that they did not deceive themselves. We are taught here: (1) The danger of self-deception - a danger that besets all on the subject of religion. (2) The fact that false philosophy is the most fruitful source of self-deception in the business of religion. So it was among the Corinthians; and so it has been in all ages since. If any man among you - Any teacher, whatever may be his rank or his confidence in his own abilities; or any private member of the church. Seemeth to be wise - Seems to himself; or is thought to be, has the credit, or reputation of being wise. The word “seems” δοκεῖ dokei implies this idea - if anyone seems, or is supposed to be a man of wisdom; if this is his reputation; and if he seeks that this should be his reputation among people. See instances of this construction in Bloomfield. In this world - In this “age,” or “world” (ἐν τῷ αἰῶν τούτῳ en tō aiōn toutō). There is considerable variety in the interpretation of this passage among critics. It may be taken either with the preceding or the following words. […]

(6) Don't say that the idea of human equality is absurd, because some men are tall and some short, some clever and some stupid. At the height of the French Revolution it was noticed that Danton was tall and Murat short. In the wildest popular …

A man writing an article on military strategy is simply a man writing an article; a horrid sight. But a boy making a campaign with tin soldiers is like a General making a campaign with live soldiers. He must to the limit of his juvenile …