Matthew Henry on 1 Corinthians 14:6-14
In this paragraph he goes on to show how vain a thing the ostentation of speaking unknown and unintelligible language must be. It was altogether unedifying and unprofitable (Co1 14:6): If I come to you speaking with tongues, what will it profit you, unless I speak to you by revelation, or by knowledge, or by prophesying, or by doctrine? It would signify nothing to utter any of these in an unknown tongue. An apostle, with all his furniture, could not edify, unless he spoke to the capacity of his hearers. New revelations, the most clear explications of old ones, the most instructive discourses in themselves, would be unprofitable in a language not understood. Nay, interpretations of scripture…
Read the whole note in the consoleJamieson-Fausset-Brown on 1 Corinthians 14:11
Therefore--seeing that none is without meaning.
a barbarian--a foreigner (Act 28:2). Not in the depreciatory sense as the term is now used, but one speaking a foreign language.
Adam Clarke on 1 Corinthians 14:11
If I know not the meaning of the voice - Την δυναμιν της φωνης, The power and signification of the language.
I shall be unto him that speaketh a barbarian - I shall appear to him, and he to me, as a person who had no distinct and articulate sounds which can convey any kind of meaning. This observation is very natural: when we hear persons speaking in a language of which we know nothing, we wonder how they can understand each other, as, in their speech, there appears to us no regular distinction of sounds or words. For the meaning and origin of the word barbarian, see the note on Act 28:2.
John Gill on 1 Corinthians 14:11
Therefore if I know not the meaning of the voice,.... The force and power of a language, the signification of it, the ideas its words convey, but only hear the sound of it:
I shall be to him that speaketh a barbarian, and he that speaketh shall be a barbarian unto me: like one of those rude and uncultivated people that inhabit deserts and wild places, who can neither understand the language of others, nor be understood by others; and indeed may be meant of any sort of people, that do not understand one another's language: the word "bar", and "bara", in the Chaldee, Syriac, and Arabic languages, not only signifies a field, a wood, or desert place, but also without, or any thing extraneous;…