1 Corinthians 14:20-33
20Brethren, do not be children in your thinking; yet in evil be infants, but in your thinking be mature.
21In the Law it is written, "BY MEN OF STRANGE TONGUES AND BY THE LIPS OF STRANGERS I WILL SPEAK TO THIS PEOPLE, AND EVEN SO THEY WILL NOT LISTEN TO ME," says the Lord.
22So then tongues are for a sign, not to those who believe but to unbelievers; but prophecy is for a sign, not to unbelievers but to those who believe.
23Therefore if the whole church assembles together and all speak in tongues, and ungifted men or unbelievers enter, will they not say that you are mad?
24But if all prophesy, and an unbeliever or an ungifted man enters, he is convicted by all, he is called to account by all;
25the secrets of his heart are disclosed; and so he will fall on his face and worship God, declaring that God is certainly among you.
26What is the outcome then, brethren? When you assemble, each one has a psalm, has a teaching, has a revelation, has a tongue, has an interpretation Let all things be done for edification.
27If anyone speaks in a tongue, it should be by two or at the most three, and each in turn, and one must interpret;
28but if there is no interpreter, he must keep silent in the church; and let him speak to himself and to God.
29Let two or three prophets speak, and let the others pass judgment.
30But if a revelation is made to another who is seated, the first one must keep silent.
31For you can all prophesy one by one, so that all may learn and all may be exhorted;
32and the spirits of prophets are subject to prophets;
33for God is not a God of confusion but of peace, as in all the churches of the saints.