19. yet in the church I would rather speak five words with my understanding, in order to teach others also, than 10,000 words in another language.
20. Brothers, don’t be childish in your thinking, but be infants in regard to evil and adult in your thinking.
21. It is written in the law:I will speak to these peopleby people of other languagesand by the lips of foreigners,and even then, they will not listen to Me, says the Lord.
22. It follows that speaking in other languages is intended as a sign, not for believers but for unbelievers. But prophecy is not for unbelievers but for believers.
23. 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?