13. Wherefore, let him that speaketh in an unknown language, pray that he may interpret.
14. For if I pray in an unknown language, my spirit prayeth, but my understanding is unfruitful.
15. What is it then? I will pray with the spirit, and I will pray with the understanding also: I will sing with the spirit, and I will sing with the understanding also.
16. Else, when thou shalt bless with the spirit, how shall he that occupieth the room of the unlearned say Amen at thy giving of thanks, seeing he understandeth not what thou sayest?
17. For thou verily givest thanks well, but the other is not edified.
18. I thank my God, I speak in languages more than ye all:
19. Yet in the church I had rather speak five words with my understanding, that by my voice I may teach others also, than ten thousand words in an unknown language.
20. Brethren, be not children in understanding: yet in malice be ye children, but in understanding be men.
21. In the law it is written, With men of other tongues and other lips will I speak to this people; and yet for all that will they not hear me, saith the Lord.
22. Wherefore languages are for a sign, not to them that believe, but to them that believe not: but prophesying serveth not for them that believe not, but for them who believe.
23. If therefore the whole church is assembled in one place, and all speak in languages, and there come in those that are unlearned, or unbelievers, will they not say that ye are insane?
24. But if all prophesy, and there come in one that believeth not, or one unlearned, he is convinced by all, he is judged by all: