1 Corinthians 14:2-4

MKJV(i) 2 For he who speaks in a tongue does not speak to men but to God. For no one hears, but in spirit he speaks mysteries. 3 But he who prophesies speaks to men for building up, and exhortation, and comfort. 4 The one speaking in a tongue builds himself up, but he prophesying builds up a church.