20My brothers, do not be children in mind: in evil be as little children, but in mind be of full growth.
21In the law it is said, By men of other tongues and by strange lips will my words come to this people; and not even so will they give ear to me, says the Lord.
22For this reason tongues are for a sign, not to those who have faith, but to those who have not: but the prophet's word is for those who have faith, and not for the rest who have not.
23If, then, the church has come together, and all are using tongues, and there come in men without knowledge or faith, will they not say that you are unbalanced?
24But if all are teaching as prophets, and a man without faith or knowledge comes in, he is tested by all, he is judged by all;
25The secrets of his heart are made clear; and he will go down on his face and give worship to God, saying that God is truly among you.
26What is it then, my brothers? when you come together everyone has a holy song, or a revelation, or a tongue, or is giving the sense of it. Let everything be done for the common good.