1 Corinthians 14
22 Ref Wherefore tongues 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 which believe.
23 Ref If therefore the whole church be come together into one place, and all speak with tongues, and there come in those that are unlearned, or unbelievers, will they not say that ye are mad?
24 Ref But if all prophesy, and there come in one that believeth not, or one unlearned, he is convinced of all, he is judged of all:
25 Ref And thus are the secrets of his heart made manifest; and so falling down on his face he will worship God, and report that God is in you of a truth.
26 Ref How is it then, brethren? when ye come together, every one of you hath a psalm, hath a doctrine, hath a tongue, hath a revelation, hath an interpretation. Let all things be done unto edifying.