For if I pray in a tongue, my spirit prays but my mind is unproductive.
Therefore, one who speaks in a tongue should pray for the power to interpret.
nevertheless, in church I would rather speak five words with my mind, in order to instruct others also, than ten thousand words in a tongue.
For those who speak in a tongue do not speak to other people but to God, for no one understands them, since they are speaking mysteries in the Spirit.