The Day and the Hour by Ennis Drake

Available on Amazon

Jason Grae is a man of unique power; a man whose suffering rivals the Passion of Christ himself. His is not a power you might associate with the modern mythologies of comic books or film, but something as austere as knowledge. Yet Jason's knowledge is the immortal reserve of gods--the absolute knowledge of his own matter—and it renders him invulnerable for all the days of his life preceding March 11th, 2004. 

Like most power, it does not come without a price.

"The Day and the Hour is as sharp as the business end of a shiv. Ennis Drake is a powerful new presence on the horror scene." —Laird Barron author of THE CRONING