17. For thou verily givest thanks well, but the other is not edified.
18. I thank God, I speak with tongues more than you all:
19. howbeit in the church I had rather speak five words with my understanding, that I might instruct others also, than ten thousand words in a tongue.
20. Brethren, be not children in mind: yet in malice be ye babes, but in mind be men.
21. In the law it is written, By men of strange tongues and by the lips of strangers will I speak unto this people; and not even thus will they hear me, saith the Lord.
22. Wherefore tongues are for a sign, not to them that believe, but to the unbelieving: but prophesying is for a sign, not to the unbelieving, but to them that believe.
23. If therefore the whole church be assembled together and all speak with tongues, and there come in men unlearned or unbelieving, will they not say that ye are mad?