6 Bible Verses about Speaking In Tongues

Now it happened that while Apollos was in Corinth, Paul, after passing through the hinterland, came to Ephesus, where he found a few disciples. "Did you receive the Holy Spirit when you believed?" he asked them. "No" said they, "we did not even hear that there is a Holy Spirit." "Into what, then, were you baptized?" he asked. And they said, "Into the baptism of John."read more.
"John indeed baptized with the baptism of repentance," answered Paul, "telling the people to believe on One who was coming after him, namely, on Jesus." When they heard this they were baptized into the name of the Lord Jesus; and after Paul had laid his hands on them, the Holy Spirit came upon them, and they began to speak with tongues, and to prophesy. They were in all about twelve men.

to one man by the same Spirit is given faith, to another gifts of healing by the one Spirit; to another the powers which work miracles, to another prophecy, to another the discernment of spirits; to another varieties of tongues, to another the interpretation of tongues.

Now you are the body of Christ, and individually members of it. And God has appointed those in the church to be first of all apostles, second, prophets, third, teachers. then workers of miracles, healers, helpers, administrators, users of various kinds of "tongues." Are all apostles? Are all prophets? teachers? workers of miracles?read more.
Have all gifts of healing? Do all speak with tongues? Do all interpret? Desire earnestly the greater gifts. And yet I will go on to show you a still more excellent way.

Love never fails; but though there are prophecies, they will fail; though there are tongues, they will cease; though there is knowledge, it will be superseded.

For he who speaks in a "tongue" speaks not to man but to God, for no one understands him, but in the Spirit he utters secret truths. But he who prophesies addresses words to men that build up, encourage, and console. He who speaks in a tongue upbuilds himself; but he who prophesies upbuilds the church.read more.
Now I should like you all to speak with "tongues"; but I should rather that you prophesied, For he who prophesies is greater than he who speaks with tongues, unless he interprets, so that the church may be built up. Now brothers, if I should come to you speaking with tongues, what should I benefit you, unless I speak to you some revelation, or knowledge, or prophecy, or teaching? For if lifeless instruments such as the flute or the harp give no distinction in the sounds, how shall it be known what is fluted or harped? Or, for example, if the trumpet give an uncertain sound, what soldier will be prepared for battle? In the same way with you, if you utter unintelligible words with your tongue, how can what you say be understood? You will be speaking to the winds! There are, let us say, so many languages in the world, and none without its meaning. If then I do not know the force of expression, I shall seem a barbarian to the one who uses it, and he will seem a barbarian to me. So also in your case, since you are ambitious for spiritual gifts, seek to excel in them for the upbuilding of the church. So let him who speaks with tongues pray that he may interpret. For if I pray in an unknown tongue, my spirit prays, but my mind is barren. What then? I will pray with my spirit, and I will pray also with my mind. I will praise God with my spirit, but I will praise him with my mind, also. For if you in your spirit bless God, how shall he who fills the place of the unlearned say the Amen to your thanksgiving, when he does not know what you are talking about? You on the one hand offer a good thanksgiving, but the other is not built up. Thank God I speak with tongues more than you all, but in the church I would rather speak five words with my understanding, so as to instruct others, than ten thousand in an unknown tongue. Brothers, do not become children in understanding; be babes in malice, but in understanding become mature men. In the Law it is written. With men of other tongues, and by the lips of strangers, will I speak to this people, and even then they will not listen to me, says the Lord. So then the gift of tongues is for a sign, not to believers, but to unbelievers; but prophecy is not for unbelievers, but for those who believe. Accordingly, when the whole church assemblies, and everybody is speaking "with tongues," if there enter men unlearned or unbelieving, will they not say that you are mad? But if all are prophesying when an unlearned or unbelieving man enters, he is convicted in conscience by your speaker, he feels himself judged by all, and the secret depths of his heart are laid open. So he will fall upon his face and worship God, saying, "Of a truth, God is with you." What follows, then, brothers? Whenever you meet together, each contributes something; a psalm, a sermon, a revelation, a tongue, an interpretation. Let all be done for edification. If any one speaks in an unknown tongue, let it be by two, or at the most by three, and that in turn, and let some one interpret. But if there is no one to interpret, let them keep silence in the church, and speak to themselves and to God.

So, my brothers, be ambitious for the gift of prophecy, and speak not against the gifts of tongues. Let everything be done decently and in order.