How does Stephen King make a comment about religion through his fictional story Man in the Black Suit?

The Man in the Black Suit" is a horror short story by American writer Stephen King. It was originally published in the October 31, 1994 issue of The New Yorker magazine. In 1995, it won the World Fantasy Award and the O. Henry Award for Best Short Fiction. In 1997, it was published in the limited-edition collection Six Stories. In 2002, it was included in King's collection Everything's Eventual. King described the piece as an homage to Nathaniel Hawthorne's story "Young Goodman Brown". He also states that the story evolved from one his friend told him, in which the friend's grandfather had come face to face with Satan himself in the form of an ordinary man. It was adapted into a short film, with the same title, in 2004 by Nicholas Mariani.