His belief is founded on the work of Robert D. Van Kampen ( 1938 -- 1999 ) ; his books The Sign , The Rapture Question Answered .
The Fourth Reich detail his pre-wrath rapture doctrine .
His belief is founded on the work of Robert D. Van Kampen ( 1938 -- 1999 ) ; his books The Sign , The Rapture Question Answered and The Fourth Reich detail his pre-wrath rapture doctrine .