Speak to the Rock traces the roots of the modern Pentecostal movement, from the days of the early church, through the persecutions of the Dark Ages, the revivals of the Reformation and the Holiness movement, to the Azusa Street Revival. Robert R. Owens argues that the Azusa Street Revival was the greatest single religious event of the twentieth century. Owens challenges traditional historical assessments of events associated with Azusa Street, and provides new information regarding some of the early influences and people who helped shape the Revival. He also offers a critical evaluation of the socio-economical and anti-structuralist aspects of the Revival. An extensive bibliography is an excellent resource for readers wishing to learn more about the beginnings of the modern Pentecostal movement.