1 Corinthians 14:21-25

21In 1the 2Law it is written: “3By 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 4prophecy is not for unbelievers, but for those who believe. 23Therefore if the whole church gathers together and all the people speak in tongues, and 5outsiders or unbelievers enter, will they not say that 6you are insane? 24But if all 7prophesy, and an unbeliever or an 8outsider enters, he is 9convicted by all, he is called to account by all; 2510the secrets of his heart are disclosed; and so he will 11fall on his face and worship God, 12declaring that God is certainly among you.