Words of Wisdom
For he that speaketh in an unknown tongue speaketh not unto men, but unto God: for no man understandeth him; howbeit in the spirit he speaketh mysteries.
But he that prophesieth speaketh unto men to edification, and exhortation, and comfort.
He that speaketh in an unknown tongue edifieth himself; but he that prophesieth edifieth the church.
1 Corinthians 14:2-4
Wherefore let him that speaketh in an unknown tongue pray that he may interpret.
For if I pray in an unknown tongue, my spirit prayeth, but my understanding is unfruitful.
1 Corinthians 14:13, 14
Yet in the church I had rather speak five words with my understanding, that by my voice I might teach others also, than ten thousand words in an unknown tongue. 1 Corinthians 14:19
If any man speak in an unknown tongue, let it be by two, or at the most by three, and that by course; and let one interpret. 1 Corinthians 14:27