1 Corinthians 14:22-24

New King James Version

²² Therefore tongues are for a ^(A)sign, not to those who believe but to unbelievers; but prophesying is not for unbelievers but for those who believe. ²³ Therefore if the whole church comes together in one place, and all speak with tongues, and there come in those who are uninformed or unbelievers, ^(B)will they not say that you are ^[a]out of your mind? ²⁴ But if all prophesy, and an unbeliever or an uninformed person comes in, he is convinced by all, he is convicted by all.