1 Corinthians 14:14

New King James Version

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

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For he who speaks in a tongue does not speak to men but to God, for no one understands him; however, in the spirit he speaks mysteries.

yet in the church I would rather speak five words with my understanding, that I may teach others also, than ten thousand words in a tongue.

Therefore let him who speaks in a tongue pray that he may interpret.