2For he that speaks in an unknown tongue speaks not unto men, but unto God: for no man understands him; nevertheless in the spirit he speaks mysteries.
5I would that all of you all spoke with tongues but rather that all of you prophesied: for greater is he that prophesies than he that speaks with tongues, except he interpret, that the church may receive edifying.
6Now, brethren, if I come unto you speaking with tongues, what shall I profit you, except I shall speak to you either by revelation, or by knowledge, or by prophesying, or by doctrine?
7And even things without life giving sound, whether pipe or harp, except they give a distinction in the sounds, how shall it be known what is piped or harped?
9So likewise all of you, except all of you utter by the tongue words easy to be understood, how shall it be known what is spoken? for all of you shall speak into the air.
15What is it then? I will pray with the spirit, and I will pray with the understanding also: I will sing with the spirit, and I will sing with the understanding also.
16Else when you shall bless with the spirit, how shall he that occupies the room of the unlearned say Amen at your giving of thanks, seeing he understands not what you says?
19Yet in the church I had rather speak five words with my understanding, that by my voice I might teach others also, than ten thousand words in an unknown tongue.
21In the law it is written, With men of other tongues and other lips will I speak unto this people; and yet for all that will they not hear me, says the LORD.
22Wherefore tongues are for a sign, not to them that believe, but to them that believe not: but prophesying serves not for them that believe not, but for them which believe.
23If therefore the whole church be come together into one place, and all speak with tongues, and there come in those that are unlearned, or unbelievers, will they not say that all of you are mad?
26How is it then, brethren? when all of you come together, every one of you has a psalm, has a doctrine, has a tongue, has a revelation, has an interpretation. Let all things be done unto edifying.
34Let your women keep silence in the churches: for it is not permitted unto them to speak; but they are commanded to be under obedience as also says the law.