JMNT(i)
26 What, then, is [the conclusion], brothers (= fellow members)? Whenever you folks may at some point come together: each one of you habitually has a psalm (song; tune played on a stringed instrument, with a poem); has a teaching; has an unveiling (revelation; a disclosure); has a language (or: a tongue); has a translation (or: interpretation) – all things (everything!) and every person [directed] toward edification, upbuilding and construction – let it habitually happen (normally come to be; constantly occur)!
27 So if anyone is habitually speaking in a language (or: with a tongue) – let it be (or: to the extent of) two, or three, at the most – and then (or: also) let one be normally translating (or: interpreting). [comment: 2 or 3 – the number of true witness]
28 Now if there may be no translator (or: interpreter) within [this] assembly of the called-out, let him or her continue in silence, yet let him or her continue to speak to (or: in) himself, and to (or: in; with) God.