No one can claim that what they today are labeling as "speaking in tongues" is anything like what the New Testament presents.
The foundation of the Pentecostal movement is based on pure speculation.
The foundation of the Pentecostal movement is based on pure speculation.
On the other hand, what Pentecostals teach today goes far beyond the Gift of Tongues, making it into a Prayer Language that is supposedly available to anybody who choose to move their mouths and "let the Spirit fill that mouth with words." Not being funny....