6 Now, brethren, if I come to you speaking in tongues, how shall I benefit you unless I bring you some revelation or knowledge or prophecy or teaching? 7 If even lifeless instruments, such as the flute or the harp, do not give distinct notes, how will any one know what is played? 8 And if the bugle gives an indistinct sound, who will get ready for battle? 9 So with yourselves; if you in a tongue utter speech that is not intelligible, how will any one know what is said? For you will be speaking into the air. 10 There are doubtless many different languages in the world, and none is without meaning; 11 but if I do not know the meaning of the language, I shall be a foreigner to the speaker and the speaker a foreigner to me. 12 So with yourselves; since you are eager for manifestations of the Spirit, strive to excel in building up the church. 13 Therefore, he who speaks in a tongue should pray for the power to interpret. 14 For if I pray in a tongue, my spirit prays but my mind is unfruitful.
Matthew Henry's Commentary on 1 Corinthians 14:6-14
Commentary on 1 Corinthians 14:6-14
(Read 1 Corinthians 14:6-14)
Even an apostle could not edify, unless he spoke so as to be understood by his hearers. To speak words that have no meaning to those who hear them, is but speaking into the air. That cannot answer the end of speaking, which has no meaning; in this case, speaker and hearers are barbarians to each other. All religious services should be so performed in Christian assemblies, that all may join in, and profit by them. Language plain and easy to be understood, is the most proper for public worship, and other religious exercises. Every true follower of Christ will rather desire to do good to others, than to get a name for learning or fine speaking.