1 Corinthians 14:22 NKJV Therefore tongues are for a sign, not to those who believe but to unbelievers; but prophesying is not for unbelievers but for those who believe.
1 Corinthians 14:27-28 NKJV If anyone speaks in a tongue, let there be two or at the most three, each in turn, and let one interpret.
BUT if there is no interpreter. Let him keep silent in church, and let him speak to himself and to God.