The librarians and your professor are here every step of the way.
General religion sources:
More specific religion sources:
To find books (and more!) use DePauw's Discovery search. It will also search materials owned by libraries all over the world.
Other ebook packages, that may not appear in the search above:
Just go to the library's Research Help page, and chat/text with the peer research consultants (you can also drop-in to the Library Research Spot in Prevo Science Library), email the libraries, check the FAQs, or make an appointment with a librarian!