Six months ago, a mere handful of people were showing up for Saturday- night home services conducted by Jorge Alvarado, a Mexican-American upholsterer and part-time evangelist in Houston. But soon so many people were coming that Alvarado had to move his congregation to a small commercial building, and then to a large house, where some 80 worshipers now regularly attend his meetings. These two-hour gatherings feature testimonies, rousing hymns accompanied by electric guitar, and high-energy sermons ("The Lord gives strength to the weak!").
Alvarado's Spanish-language mission is one of 61 begun in the U.S. in the past year by the Assemblies...