1 Corinthians 14:20-25

Beloved ones, don’t remain as immature children in your reasoning. As it relates to evil, be like newborns, but in your thinking be mature adults. For it stands written in the law: I will bring my message to this people with strange tongues and foreign lips, yet even then they still will not listen to me, says the Lord. So then, tongues are not a sign for believers, but a miracle for unbelievers. Prophecy, on the other hand, is not for unbelievers, but a miracle sign for believers. If the entire church comes together and everyone is speaking in tongues, won’t the visitors say that you have lost your minds? But if everyone is prophesying, and an unbeliever or one without the gift enters your meeting, he will be convicted by all that he hears and will be called to account, for the intimate secrets of his heart will be brought to light. He will be mystified and fall facedown in worship and say, “God is truly among you!”