¹⁸ I thank God that I speak in tongues more than all of you. ¹⁹ But in the church I would rather speak five intelligible words to instruct others than ten thousand words in a tongue.^(A)

²⁰ Brothers and sisters, stop thinking like children.^(B) In regard to evil be infants,^(C) but in your thinking be adults. ²¹ In the Law^(D) it is written:

²² Tongues, then, are a sign, not for believers but for unbelievers; prophecy,^(F) however, is not for unbelievers but for believers. ²³ So if the whole church comes together and everyone speaks in tongues, and inquirers or unbelievers come in, will they not say that you are out of your mind?^(G)

²⁷ If anyone speaks in a tongue, two—or at the most three—should speak, one at a time, and someone must interpret. ²⁸ If there is no interpreter, the speaker should keep quiet in the church and speak to himself and to God.