Charleston is nicknamed the “Holy City,” because of the many steeples that punctuate the graceful poetry of its skyline. There are more than 900 houses of worship in the Low Country, representing all of the world’s major faiths, and more than a few minor ones. Some of the congregations were founded in the 1600s, others in the 2010s. Some meet in grand buildings on the National Historic Registry, others in humble strip mall storefronts. Regardless of how old they are or where they meet, Charleston’s congregations are driven by faith. That faith was sorely tested...