1 Corinthians 14:2-4

2For anyone who speaks in a tongue Or in another language; also in verses 4, 13, 14, 19, 26 and 27 does not speak to people but to God. Indeed, no one understands them; they utter mysteries by the Spirit. 3But the one who prophesies speaks to people for their strengthening, encouraging and comfort. 4Anyone who speaks in a tongue edifies themselves, but the one who prophesies edifies the church.