I always interpreted it as knowledge of religion in general. You can be faithful to a god, but knowing what rites, edicts, ceremonies, rituals, holy texts, and even history of other religions is separate from that.
Like, if you are Catholic, does that mean you know all about other religions like Judaism or Islam?
I think people forget that the Democrats literally chose Hillary instead of Sanders - like, the Democratic Party purposefully chose Hillary despite the fact Bernie was actually more popular amongst people.
Not gonna start saying why because there’s probably a myriad of reasons, but the fact that the Democratic party had a chance to put in somebody who was at least saying really progressive stuff for the people of America that the people really liked and just chose a fucking Clinton instead should say something about the party.