1 Corinthians 14:4-11

4The one who speaks in a tongue builds up himself, but the one who prophesies builds up the church.

5Now I want you all to speak in tongues, but even more to prophesy. The one who prophesies is greater than the one who speaks in tongues, unless someone interprets, so that the church may be built up.

6Now, brothers, if I come to you speaking in tongues, how will I benefit you unless I bring you some revelation or knowledge or prophecy or teaching?

7If even lifeless instruments, such as the flute or the harp, do not give distinct notes, how will anyone know what is played?

8And if the bugle gives an indistinct sound, who will get ready for battle?

9So with yourselves, if with your tongue you utter speech that is not intelligible, how will anyone know what is said? For you will be speaking into the air.

10There are doubtless many different languages in the world, and none is without meaning,

11but if I do not know the meaning of the language, I will be a foreigner to the speaker and the speaker a foreigner to me.