1 Corinthians 14:27-29
King James Version
27 If any man speak in an unknown tongue, let it be by two, or at the most by three, and that by course; and let one interpret.
28 But if there be no interpreter, let him keep silence in the church; and let him speak to himself, and to God.
29 Let the prophets speak two or three, and let the other judge.Read full chapter