1 Corinthians 14:23-25
23Therefore if the whole church assembles together and all speak in tongues, and 1uninformed men or unbelievers enter, will they not say that ayou are out of your mind? 24But if all aprophesy, and an unbeliever or an 1uninformed man enters, he is bconvicted by all, he is called to account by all; 25athe secrets of his heart are disclosed; and so he will bfall on his face and worship God, declaring that csurely God is among you.