Today fans celebrate the birthday of George Phillipp Telemann (1681-1767), a Baroque composer.
Telemann was raised in a Christian home. His father was a Lutheran pastor, and his mother's father was a pastor as well. Telemann's mother was dead set against his becoming a musician, to the point of hiding his instruments. Despite parental opposition, thankfully, he pursued his passion. So much so that Telemann made it into the Guinness Book of World Records for being the most prolific composer.
Doing a quick search, I haven't found out very much about his faith, outside of family connections and working as church musician, but I'll keep searching. In the meantime, here's a work by Telemann, the St. Matthew Passion (1746).