Yes indeed, according to Paul himself, the 1Cor 14 "tongues" are undoubtedly a real, existing LANGUAGE IN THE WORLD. The context demands this be so. Interpretation is precisely the same as what they do today with headsets at the EU Parliament or anywhere else. Nothing more nothing less. This of course corroborates the Acts 2 phenomenon of LANGUAGES IN THE WORLD, where the INTERPRETERS were the FOREIGNERS THEMSELVES!
1Co 14:5
I wish you all spoke with tongues, but even more that you prophesied; for he who prophesies
is greater than he who speaks with tongues,
unless indeed he interprets, that the church may receive edification.
1Co 14:9-11
So likewise you,
unless you utter by the tongue WORDS easy to understand, how will it be known what is spoken? For you will be speaking into the air.
There are, it may be,
so many kinds of languages in the WORLD, and NONE of them is without SIGNIFICANCE.
Therefore, if I do not know the meaning
of the language, I shall
be a foreigner to him who speaks,
and he who speaks will be a foreigner to me.
1Co 14:13
Therefore let him who speaks in a tongue pray that
he may interpret.
1Co 14:27-28
If anyone speaks in a tongue,
let there be two or at the most three,
each in turn,
and let one interpret.
But if
there is no interpreter, let him keep silent in church, and let him speak to himself and to God.
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And with that I bid you good day.