"Speaking in Tongues" is one of the supernatural gifts of the Holy Spirit referred to in 1 Corinthians 12:4-10:

Now there are varieties of gifts, but the same Spirit; ... To each is given the manifestation of the Spirit for the common good. For to one is given …

Pentecostal Christians include Protestants who believe that the manifestations of the Holy Spirit are alive, available, and experienced by modern-day Christians. Pentecostals may also be described as “Charismatics.”

Definition of Pentecostal

The word “Pentecostal” …