Brethren, do not be children in your thinking; be babes in evil, but in thinking be mature. In the law it is written, "By men of strange tongues and by the lips of foreigners will I speak to this people, and even then they will not listen to me, says the Lord." Thus, tongues are a sign not for believers but for unbelievers, while prophecy is not for unbelievers but for believers. If, therefore, the whole church assembles and all speak in tongues, and outsiders or unbelievers enter, will they not say that you are mad? But if all prophesy, and an unbeliever or outsider enters, he is convicted by all, he is called to account by all, the secrets of his heart are disclosed; and so falling on his face, he will worship God and declare that God is really among you.

At that time, Jesus went down to Capernaum, a city of Galilee. And he was teaching them on the sabbath; and they were astonished at his teaching, for his word was with authority. And in the synagogue there was a man who had the spirit of an unclean demon; and he cried out with a loud voice, "Ah! What have you to do with us, Jesus of Nazareth? Have you come to destroy us? I know who you are, the Holy One of God." But Jesus rebuked him, saying, "Be silent, and come out of him!" And when the demon had thrown him down in the midst, he came out of him, having done him no harm. And they were all amazed and said to one another, "What is this word? For with authority and power he commands the unclean spirits, and they come out."