27. If anyone speaks 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 is no interpreter, let him keep silence in the congregation {Gr. ekklesia – called out ones}, and let him speak to himself and to God.
29. Let the prophets speak two or three, and let the others judge.
30. If any thing is revealed to another that sits by, let the first be silent.