There is a lot of conjecture about speaking in tongues. This book (written by myself) explains what speaking in tongues is. It starts a little bit differently then most books about tongues as I go into what the day of Pentecost is and how it lines up with the other feast days.
If you can take hold of what the feast days mean and see the overall plan of God and how everything precisely fits together as he designed it you will truly marvel.
