We All Fall Down is a Christian science fiction

Christian science fiction

Christian science fiction is a subgenre of both Christian literature and science fiction, in which there are strong Christian themes, or which are written from a Christian point of view. These themes may be subtle, expressed by way of analogy, or more explicit. Major influences include early...

 novel by Brian Caldwell

Brian Caldwell

Brian Caldwell is an American sailor. He spent seven years cruising the South Pacific with his parents when he was young, returning to Hawaii at age 15. He departed Hawaii aged 19 and completed his voyage on September 28 1996. He was the youngest solo circumnavigator, finishing at the age of 20,...

 published in 2000. The protagonist lives through the traditional End Times scenario predicted by Evangellical premillennialists (beginning with the Pre-Tribulation Rapture but refuses to accept Christianity because he believes it would be hypocritical to do so from fear of damnation.
http://www.johnreilly.info/wafd.htm online review which discusses the novel in relation to traditions of apocalyptic fiction.