1 Corinthians 14:6-23

6Now, brothers and sisters, if I come to you and speak in tongues, what good will I be to you, unless I bring you some revelation or knowledge or prophecy or word of instruction? 7Even in the case of lifeless things that make sounds, such as the pipe or harp, how will anyone know what tune is being played unless there is a distinction in the notes? 8Again, if the trumpet does not sound a clear call, who will get ready for battle? 9So it is with you. Unless you speak intelligible words with your tongue, how will anyone know what you are saying? You will just be speaking into the air. 10Undoubtedly there are all sorts of languages in the world, yet none of them is without meaning. 11If then I do not grasp the meaning of what someone is saying, I am a foreigner to the speaker, and the speaker is a foreigner to me.

12So it is with you. Since you are eager for gifts of the Spirit, try to excel in those that build up the church. 13For this reason the one who speaks in a tongue should pray that they may interpret what they say. 14For if I pray in a tongue, my spirit prays, but my mind is unfruitful. 15So what shall I do? I will pray with my spirit, but I will also pray with my understanding; I will sing with my spirit, but I will also sing with my understanding. 16Otherwise when you are praising God in the Spirit, how can someone else, who is now put in the position of an inquirer, The Greek word for inquirer is a technical term for someone not fully initiated into a religion; also in verses 23 and 24. say “Amen” to your thanksgiving, since they do not know what you are saying?

17You are giving thanks well enough, but no one else is edified. 18I thank God that I speak in tongues more than all of you.

19But in the church I would rather speak five intelligible words to instruct others than ten thousand words in a tongue. 20Brothers and sisters, stop thinking like children. In regard to evil be infants, but in your thinking be adults.

21In the Law it is written: “With other tongues and through the lips of foreigners I will speak to this people, but even then they will not listen to me, says the Lord.” Isaiah 28:11,12 22Tongues, then, are a sign, not for believers but for unbelievers; prophecy, however, is not for unbelievers but for believers. 23So if the whole church comes together and everyone speaks in tongues, and inquirers or unbelievers come in, will they not say that you are out of your mind?