1 Corinthians 14:19
Treasury of Scripture Knowledge
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 14:4
He that speaks in an unknown tongue edifies himself, but he that prophesies edifies the congregation .
1 Corinthians 12:7
But the manifestation of the Spirit is given to each one to profit with.