'Language' in the Bible

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.

The person who speaks in another language builds himself up, but he who prophesies builds up the church.

Therefore, if I do not know the meaning of the language, I will be a foreigner to the speaker, and the speaker will be a foreigner to me.

Therefore the person who speaks in another language should pray that he can interpret.

For if I pray in another language, my spirit prays, but my understanding is unfruitful.

yet in the church I would rather speak five words with my understanding, in order to teach others also, than 10,000 words in another language.

What then is the conclusion, brothers? Whenever you come together, each one has a psalm, a teaching, a revelation, another language, or an interpretation. All things must be done for edification.

If any person speaks in another language, there should be only two, or at the most three, each in turn, and someone must interpret.