The worship music, throbbing soft-rock appeals performed by live bands, has continued here without pause, day and night, since May 1999. Voices calling to Jesus or pleading with God to help tornado victims or make Congress ban abortion resound in an auditorium that is the physical and spiritual heart of the International House of Prayer, a Christian ministry rapidly blossoming into a movement.Founded 12 years ago by Mike Bickle, a self-trained evangelical pastor, with a group of 20, the International House of Prayer, in a former strip mall, now draws tens of thousands of worshipers to its revival meetings. A...