Sequential art narrative and religion have a long, long history working together to educate the "masses," if you'll pardon the pun. Don't believe me? Do some research on stained glass windows. And comic books have been helping spread the message of Christianity and other religions since at least the 1940s.
So, I was quite happy to see CBR do a feature on religion in comics. The article isn't exactly a master's thesis, but it is interesting and informative and can act as a good primer to where the two entities of religion and comic art have intersected lately. Furthermore it offers a link to an academic conference on the subject that was recently held at Boston University.