15. What then is it? I shall pray with the spirit, and I shall also pray with the understanding. I shall sing with the spirit, and I shall also sing with the understanding.
16. Otherwise, if you bless with the spirit, how shall he who fills up the place of the unlearned say “Amĕn” at your giving of thanks, since he does not know what you say?
17. For you truly give thanks well, but the other is not built up.
18. I thank my Elohim I speak with tongues more than you all,
19. but in an assembly I wish to speak five words with my understanding that I might instruct others also, than ten thousand words in a tongue.
20. Brothers, do not be children in your thinking, but in evil be babes, and in your thinking be perfect.
21. In the Torah it has been written, “With men of other tongues and other lips I shall speak to this people. And even so, they shall not hear Me, says יהוה.”
22. So then tongues are for a sign, not to those who believe but to unbelievers, and prophesying is not for unbelievers but for those who believe.
23. If then all the assembly comes together in one place, and all speak with tongues, and there come in those who are unlearned or unbelievers, shall they not say that you are mad?
24. But if all prophesy, and an unbeliever or an unlearned one comes in, he is reproved by all, he is discerned by all.