For if I pray in a foreign language, my spirit prays, but my mind is unfruitful.
Therefore, the one speaking in a language, let him pray that he may interpret.
But in an assembly I desire to speak five words with my mind, that I may also instruct others, than myriads of words in a foreign language.
For the one speaking in a language does not speak to men, but to God; for no one hears, but in spirit he speaks mysteries.