It is written in the law: By people of other languages and by the lips of foreigners, I will speak to this people; and even then, they will not listen to Me, says the Lord.
It follows that speaking in other languages is intended as a sign, not to believers but to unbelievers. But prophecy is not for unbelievers but for believers.
Therefore if the whole church assembles together, and all are speaking in [other] languages, and people who are uninformed or unbelievers come in, will they not say that you are out of your minds?
But if all are prophesying, and some unbeliever or uninformed person comes in, he is convicted by all and is judged by all.
The secrets of his heart will be revealed, and as a result he will fall down on his face and worship God, proclaiming, "God is really among you."
How is it then, brothers? Whenever you come together, each one has a psalm, a teaching, a revelation, [another] language, or an interpretation. All things must be done for edification.
If any person speaks in [another] language, there should be only two, or at the most three, each in turn, and someone must interpret.
But if there is no interpreter, that person should keep silent in the church and speak to himself and to God.
Two or three prophets should speak, and the others should evaluate.
But if something has been revealed to another person sitting there, the first prophet should be silent.
For you can all prophesy one by one, so that everyone may learn and everyone may be encouraged.
And the prophets' spirits are under the control of the prophets,
since God is not a God of disorder but of peace. As in all the churches of the saints,
the women should be silent in the churches, for they are not permitted to speak, but should be submissive, as the law also says.
And if they want to learn something, they should ask their own husbands at home, for it is disgraceful for a woman to speak in the church meeting.
Did the word of God originate from you, or did it come to you only?
If anyone thinks he is a prophet or spiritual, he should recognize that what I write to you is the Lord's command.
But if anyone ignores this, he will be ignored.
Therefore, my brothers, be eager to prophesy, and do not forbid speaking in [other] languages.
But everything must be done decently and in order.