From the Upper Room in Jerusalem to this very hour, the rushing river of the Holy Spirit has been flowing since Pentecost. Today, Heaven is waiting on a bold, courageous host of believers to carry the banner of revival. Author Tommy Welchel is the last living connection to the saints of the Azusa Street revival. In , this spiritual general traces the Holy Spirit's movement from Pentecost to Azusa, and beyond, empowering you to join your prayers to God's ongoing work — for miraculous results! In , Welchel reveals: It's time to ignite your prayers with the power of Pentecost, and usher in the greatest outpouring in history!