Chaos: A Closer Look at the Charismatic Movement

Something, which can appear strange and unusual, is happening in many local churches in America, and throughout the world, on a regular basis. There is the utterance of unclear voices being heard and many are forced to ask, What in the world is going on? Critics of the phenomena say simply enough that people are acting weird. They are working themselves up into an emotional frenzy and uttering meaningless gibberish. Others insist that people are being filled with the Holy Spirit and so are able to speak in tongues, or another language.
-from the Introduction