Jamieson, Fausset and Brown on 1 Corinthians 14:23

23. whole ... all ... tongues--The more there are assembled, and the more that speak in unknown tongues, the more will the impression be conveyed to strangers "coming in" from curiosity ("unbelievers"), or even from a better motive ("unlearned"), that the whole body of worshippers is a mob of fanatical "madmen"; and that "the Church is like the company of builders of Babel after the confusion of tongues, or like the cause tried between two deaf men before a deaf judge, celebrated in the Greek epigram" [Grotius].

unlearned--having some degree of faith, but not gifts [Bengel].