1 Corinthians 14:23

Even if a stranger should address his inquiries through ignorance to some other person and although he who is questioned by mistake is able to make a satisfactory reply, yet, for the sake of good order, he should keep silence and direct the stranger to him whose function it is, as the apostles did when the Lord was present. In this way, speech will be employed in a well-ordered and fitting manner.

And to show thee that he introduced the term "sign" here, not as a thing which of course did some good, he added that which resulted from it. And what was this? "They will say," saith he, "that ye are mad" This however not from the nature of the sign, but from their folly. But when thou hearer of unbelievers, do not suppose that the same persons are in every case intended, but at one time they which are incurably diseased and abide uncorrected, and at another they which may be changed; such as were they who in the times of the Apostles admire the mighty things of God which they hear of; such as in the case of Cornelius. His meaning accordingly is this; that prophecy avails both among the unbelieving and among them that believe: as to the tongue, when heard by the unbelieving and inconsiderate, instead of profiting by it, they rather deride the utterers as madmen. For, in fact, it is to them but for a sign, i.e., in order to astonish them merely; whereas they who had understanding used also to profit by it: with a view to which the sign was given. Even as then there were not only certain who accused them of drunkenness, but many also admired them as relating the wonderful works of God. It appears then that the mockers were those without understanding. Wherefore also Paul did not simply say, "they will say that ye are mad," but added, "unlearned and unbelievers." Having said then, that a tongue profited not, and having again qualified this statement by turning the charge upon the Jews, he proceeds to signify that it even doth injury. "And wherefore was it given?" That it might go forth with interpretation: since without this, it hath even the contrary effect among them that are without understanding. […]

He explains in a veiled manner that the gift of tongues without the gift of interpretation becomes an occasion even for harm. He says this with the aim of humbling their pride. They thought that the gift of tongues made them an object of admiration; …

A Gloss suggests that another argument proving his proposition begins here. But in the light of what has been said, there is only one proposition, already proved. Here he clarifies the middle term of that argument, namely, that prophecy contributes more to that to which …

Yet - Sometimes prophecy is of more use, even to unbelievers, than speaking with tongues. For instance: If the whole church be met together - On some extraordinary occasion. It is probable, in so large a city, they ordinarily met in several places.