1 Corinthians 14:2-4

KJ2000(i) 2 For he that speaks in an unknown tongue speaks not unto men, but unto God: for no man understands him; but in the spirit he speaks mysteries. 3 But he that prophesies speaks unto men to edification, and exhortation, and comfort. 4 He that speaks in an unknown tongue edifies himself; but he that prophesies edifies the church.