For if I pray in a tongue, my spirit prayeth, but my understanding is unfruitful.
Wherefore let him that speaketh in a tongue pray that he may interpret.
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.
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.