Interesting - ol’ Joe seems like he was mostly accurate on the speaking of tongues. (I guess he couldn’t do it - or it would have been mandatory.)
I think he is wrong though that it is only to be used to speak to foreigners. It is a form of communicating and worshiping God. And if others are present - someone needs to be able to interpret these spiritual words.
Hmm - it would seem that most people with the gift of tongues would be doing it in private, but I never hear about that. That would make sense though.
Well; it IS biblical...
1 Corinthians 14:2
For anyone who speaks in a tongue does not speak to people but to God. Indeed, no one understands them; they utter mysteries by the Spirit.
Not even 'interpreters'!