Superstition is a stain on faith
While chatting with the protagonist in What the Night Knows, a priest imparts the following:
“We’ve come a long way in the past hundred years, and further with every passing decade. But the full flowering of the faith in our time is delayed by medieval ideas that make the Church seem hopelessly credulous. Faith isn’t superstition, John. Superstition is a stain on faith, a perversion of the religious impulse and possibly a fatal corruption of it.”
I always wonder when I read statements like this in fiction, delivered by the protagonist, antagonist, or supplemental characters, if they are what the author believes or if it simply fits the situation.