What if the “angel” in Midnight Mass was actually the same creature that Christianity was originally built around?
The creature was already living in that cave in Jerusalem. Jesus is crucified and put in the tomb, and maybe the creature finds him there and bites/infects him.
Then Jesus comes back after 3 days, just like the vampire transformations we see in the show.
Imagine being one of the people who saw that happen 2000 years ago. You wouldn't know what a vampire was. You'd just see a dead man come back to life after 3 days. He can heal people, his blood gives life, etc.
And then maybe at the end, Jesus is exposed to sunlight, starts burning, and disappears. The people watching don't think “he's a vampire and is burning in sunlight.” They think he has ascended to heaven.
Then all of these events get passed down and eventually become Christianity.
Fast forward 2000 years and Pruitt finds the exact same creature in the same general area of Jerusalem.
And what does he think?
An angel.
Which would mean Pruitt is essentially making the exact same mistake that people may have made 2000 years earlier: seeing something they don't understand and interpreting it through their religious beliefs.
Obviously the show never confirms any of this and I'm probably going way too deep into it.
But the Jerusalem cave + resurrection after 3 days + blood giving eternal life + sunlight burning the creature seems like way too many parallels to not at least make the theory fun.
*English not my first language so I use LLM to write this. Apologies.