Read 1 Corinthians 14:27 Using Other Translations
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.
If any speak in a tongue, let there be only two or at most three, and each in turn, and let someone interpret.
No more than two or three should speak in tongues. They must speak one at a time, and someone must interpret what they say.