This church is living on a prayer. A posse of preservationists in Dyker Heights is pushing the city to landmark a beloved church to save it from demolition, with parishioners worried that the Brooklyn Diocese is planning to bulldoze the building in pursuit of profit over piousness.

The city must save St. Rosalia Church at 14th Avenue and 63rd Street because it represents yet another property with ties to the Catholic Church that could soon be erased from the history books, according to a member of the civic group pushing for its preservation. “It’s really a shame that another part of history — Catholic history — is going away,” said Dyker resident Fran Vella-Marrone of the Guardians of the Guardian committee — the same civic group leading the landmarking effort for the nearby Angel Guardian home.