Tongues

Something interesting I found on definition of tongues. Dictionary.com

Are we talking about, 1.unknown tongues ,2.speaking in tongues, 3.new tongues, 4. Other tongues. Tongues is one of the controversial doctrines in the Bible. The first unknown tongue in the bible is at the Tower of Babel Gen. 11:9 (confusion is unknown). Unknown seem to be a punishment. The second speaking in Tongues is mention in Act 19:6, was accompanied by the laying on of hands brought about the Holy Spirit and speaking in tongues. The third tongue is new tongues which is spoken of in Mark 16:17 accompanied after believing and castings out devils follows the new tongues. Lastly, I believe is other tongues mentioned in Acts 2:4 after they were all filled with the Holy Ghost (Spirit) they spoke in other tongues. Which tongue is actually spoken in todays church? Which tongue is useless in the church today? Why is it so many Christians differ on this subject and yet we all claim to worship God who is not the author of confusion? In conclusion I’ll say like Paul in 1 Corinthians 14:19, Yet in the church I had rather speak five words with my understanding, that by my voice I might teach others also,than ten thousand words in an unknown tongue.