The title of the book is The Gospel from Outer Space, which refers to a gift to Earth by a visitor shaped very much like a Tralfamadorian.  
This writer's most famous novel includes the line "From this moment on, He will punish horribly anybody who torments a bum who has no connections!" God says this as a lynch mob crucifies a nobody bum named Jesus, only to hear God adopt him and give him the powers of the Son of God. The title of the book is The Gospel from Outer Space, which refers to a gift to Earth by a visitor shaped very much like a Tralfamadorian.  For 10 points name this fictional novelist who appears in Breakfast of Champions, Slaughter-House Five, and various other works by Kurt Vonnegut.
This writer's most famous novel includes the line "From this moment on, He will punish horribly anybody who torments a bum who has no connections!"
Kilgore Trout