King James Version
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.English Standard Version
If any speak in a tongue, let there be only two or at most three, and each in turn, and let someone interpret.New International Version
If anyone speaks in a tongue, two--or at the most three--should speak, one at a time, and someone must interpret.