Is there a language unknown on earth but spoken fluently in heaven?

Is it possibly a gift of the Holy Spirit? No matter what you believe on this issue has no connection with salvation, Christian can differ on many issues and still serve the same God through His son, Jesus Christ.

Corinthians chapters 12 /13/14; Acts 2:1-8; Acts 2:11; Romans 8:26; Ephesians 6:18; Jude 20; Mark 1:10-11; Mark 7:34; Mark 8:12; Mark 5:41; Acts 26:14.