But if there be no interpreter (εαν δε μη η διερμηνευτης). Third class condition. Earliest known instance and possibly made by Paul from verb in verse 1. Corinthians 14:27. Reappears in Byzantine grammarians.

Keep silence in church (σιγατω εν εκκλησια). Linear action (present active imperative). He is not even to speak in a tongue once. He can indulge his private ecstasy with God.