'Speaking' in the Bible

that by Him you were enriched in everything—in all speech and all knowledge.

I am speaking as to wise people. Judge for yourselves what I say.

Therefore I am informing you that no one speaking by the Spirit of God says, “Jesus is cursed,” and no one can say, “Jesus is Lord,” except by the Holy Spirit.

For the person who speaks in another language is not speaking to men but to God, since no one understands him; however, he speaks mysteries in the Spirit.

But now, brothers, if I come to you speaking in other languages, how will I benefit you unless I speak to you with a revelation or knowledge or prophecy or teaching?

In the same way, unless you use your tongue for intelligible speech, how will what is spoken be known? For you will be speaking into the air.

It follows that speaking in other languages is intended as a sign, not for believers but for unbelievers. But prophecy is not for unbelievers but for believers.

Therefore, if the whole church assembles together and all are speaking in other languages and people who are uninformed or unbelievers come in, will they not say that you are out of your minds?

Therefore, my brothers, be eager to prophesy, and do not forbid speaking in other languages.