17For thou verily givest thanks well, but the other is not edified.
18I thank God, I speak with tongues more than you all:
19howbeit 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.
20Brethren, be not children in mind: yet in malice be ye babes, but in mind be men.
21In 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.
22Wherefore 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.
23If 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?
