I think "perfection" refers to the Bible, in the early church period the Bible wasn't complete yet. In Corinthians, Paul does not speak about another gift of tongues, it's the same gift mentioned in Acts, but the Corinthians misused it. Speaking in tongues was speaking in foreign languages (earthly) they previously did not study and it was given to them to reach out to gentiles, was a sign for the unbelievers. Paul does not mention an angelic language either. I won't quote the verses which indicate that the gifts of tongues has ceased coz Baptistrw already posted them.