Portrait of Mikhail Desnitsky Vladimir Borovikovsky (1757-1825)

The picture has something of this: portrait, god, people, saint, mustache, man, book, holy, facial hair, monk, church, Orthodox, cross, gold, prayer, crown.
Perhaps it’s a painting of a man with a beard wearing a red, white, and blue outfit with a cross on it’s chest and a statue in the background.