Wikipedia has an article dedicated to Religion in The Simpsons and The Simpsons Archive offers a compilation as well. Both sources are pretty extensive and offer a lot of „Episodes with significant religious content“.
It used to be available at daniel-haas.de.
Obviously many people liked the picture we used for it. Hence it shall be preserved online:
On March 30th in 2004 I started PlayersPrayers. This blog was a place where sport meets spirituality.