The day a mad man gets to know that he is insane marks the day of freedom from his bondage. It's pathetic as most self acclaimed Jesus followers has through their common sense in recycle bin. I had being hearing people quoting passage of the bible for speaking in tongue but its unfortunate that most educated ones still mingle to become illiterate.
What is speaking in a new tongue as describe in the bible? It is not in babbling in unknown language, or in Greek, or stupid and meaningless utterances. "speaking in New Tongue means speaking New better story. A changed life brings a new testimony. When the spirit of breakthrough, spirit of discernment, spirit of creativity, and spirit of enterprising descend on you, definately, your tongue changes. Your story changes. No more murmuring, no more complaint, no more lack, no more begging. The indwel spirit of God does not confuse. Where people now get the idea of speaking in unknown language? It shows that people are still blind to the truth.