'Tongue' in the Bible

For he that speaketh in a tongue speaketh not unto men, but unto God; for no man understandeth; but in the spirit he speaketh mysteries.

He that speaketh in a tongue edifieth himself; but he that prophesieth edifieth the church.

So also ye, unless ye utter by the tongue speech easy to understood, how shall it be known what is spoken? for ye will be speaking into the air.

Wherefore let him that speaketh in a tongue pray that he may interpret.

For if I pray in a tongue, my spirit prayeth, but my understanding is unfruitful.

howbeit in the church I had rather speak five words with my understanding, that I might instruct others also, than ten thousand words in a tongue.

What is it then, brethren? When ye come together, each one hath a psalm, hath a teaching, hath a revelation, hath a tongue, hath an interpretation. Let all things be done unto edifying.

If any man speaketh in a tongue, let it be by two, or at the most three, and that in turn; and let one interpret: