Parallel
1 Corinthians 14:11
World English Bible British Edition · Berean Standard Bible
If then I don’t know the meaning of the language, I would be to him who speaks a foreigner, and he who speaks would be a foreigner to me.
If, then, I do not know the meaning of someone’s language, I am a foreigner (note: Literally a barbarian; twice in this verse) to the speaker, and he is a foreigner to me.