OK, I have a long history with this fiasco of a doctrine called the "the modern gift of tongues."
First of all, almost every church I have ever gone to that uses a prayer language does so in a chaotic way with no interpretation. Both squarely against the bible.
As to those like myself, back when, that used a prayer language and knew what the bible demanded and knew to enforce it. I have a long story I'll try and make short.
To the point, I believe my previous gift of tongues and probably all gifts of tongues nowadays are in fact a counterfeit gift given by the spirit of the antichrist.
I say this because I used to be a charismatic who prophesied and spoke in tongues.
Both "gifts" tempted me greatly by feeding my sense of uniqueness and self-importance, my arrogance. I would realize through this message board that I was speaking prophecy and tongues with a spirit not of the Holy Spirit. A spirit that would seize my body and speak through me like a rag doll, I do have verbal tics and Tourrette's Syndrome, though, so I want to make clear that it wasn't natural. It was not rhythmic, repetitive tics or standard obsessive-compulsive behavior but was one time "revelations" that seemed ingenious and sometimes predicted the future accurately. I have even kept some of my so called "prophecy" to this day to show what it was.
I determined from this message board to comb through the bible and apply it literally to everything Pentecostal or Charismatic. My counterfeit gift of tongues had grown immensely, as I spoke in faith to the point most of my communication in tongues was through original music towards the end. This kept me hooked for a little while, but I now know it is a temptation.
I stopped all of this because by reading the bible, I realized that the spirit communicating through me with both tongues and prophecies was certainly not the Holy Spirit of the bible. To the point, when I stopped prophesying, suddenly my gift of tongues vanished, I grew far more humble, I embraced God like never before, I never felt a "fire in my bones" like Jeremiah felt to prophesy or speak in tongues. However, I have erased thousands of lines of "prophecy" and many recordings of tongues and recordings of prophecy. Now, I am free of the curse of modern tongues and the so called Charismatic or Pentecostal Movements and I can worship the Lord in truth.