Wherefore let him that speaketh in a tongue pray that he may interpret.
Wherefore let him that speaketh in an unknown tongue pray that he may interpret.
Therefore, the person who speaks in an [unknown] tongue should pray [for the power] to interpret and explain what he says.
Therefore, those who speak in a tongue should pray to be able to interpret.
For this reason, too, whoever speaks in tongues, let him pray for the interpretation.