Mostly altos and basses.
Nobody goes into choir music for the wrong reasons.
You're getting into opera for one thing. Don Juan and Mephistopheles, pagan goddesses screeching and being strangled and thrown off balconies. Modern ones are existentialists, the romantics were secular humanists, the 18th century was all rationalists, and the 17th were Italian except for Bach. And you can't make a living playing Bach. In the Bible, we read about people singing and playing musical instruments, including the harp, the last trump, the cymbal, the psaltery.