Friday the 13th: Church of the Divine Psychopath is a 2005 novel written by Scott Phillips and published by Black Flame.
Official Summary Edit
Jason Voorhees. Unkillable. Unstoppable. Camp Crystal Lake's most infamous son is back, and he's doing what he does best!
Following the drowning of a young boy named Jason Voorhees in 1957, Camp Crystal Lake has long been terrorized by a silent killer - a seemingly unstoppable murderer who hunts his victims in the dead of night. But when an insane religious group begin to worship Jason as a means of inflicting a holy retribution, they are oblivious to the carnage that will be unleashed when he escapes!
One of the most feared icons from movie history returns in a brand new range of further adventures. Wearing his trademark hockey mask and armed with his deadly machete, Jason is back and ready for revenge!
This novel can essentially be seen as a prequel to Jason Goes to Hell: The Final Friday, as it chronicles the events of the FBI sting operation that culminated in the destruction of Jason's physical form.