18. I give thanks to God that I speak with tongues more than all of you,
19. but in the church I prefer to speak five words with my mind, in order that I may instruct other people, than ten thousand words in a tongue.
20. Brothers, do not become children in your understanding, but with respect to wickedness be as a child, and in your understanding be mature.
21. In the law it is written: “By those who speak a foreign language and by the lips of others I will speak to this people, and not even in this way will they obey me,” says the Lord.
22. So then, tongues are for a sign not to those who believe, but to unbelievers, but prophecy is not for unbelievers, but for those who believe.
23. Therefore, if the whole church comes together at the same time and all speak with tongues, and outsiders or unbelievers enter, will they not say that you are out of your minds?
24. But if all prophesy, and some unbeliever or outsider enters, he is convicted by all, he is judged by all,
25. the secret things of his heart become evident, and so, falling on his face, he will worship God, proclaiming, “God is truly among you!”
26. Therefore what should you do, brothers? Whenever you come together, each one of you has a psalm, has a teaching, has a revelation, has a tongue, has an interpretation. All things must be done for edification.
27. If anyone speaks in a tongue, it must be on one occasion two or at most three, and one after the other, and one must interpret.
28. But if there is no interpreter, he must be silent in the church, but let him speak to himself and to God.