1 Corinthians 14:22-25

NHEB(i) 22 Therefore tongues are for a sign, not to those who believe, but to the unbelieving; but prophesying is for a sign, not to the unbelieving, but to those who believe. 23 If therefore the whole church is assembled together and all speak in tongues, and unlearned or unbelieving people come in, won't they say that you are crazy? 24 But if all prophesy, and someone unbelieving or unlearned comes in, he is reproved by all, and he is judged by all. 25 And thus the secrets of his heart are revealed. So he will fall down on his face and worship God, declaring that God is among you indeed.