David Wilkerson
Wilkerson wrote several Christian books, like the already mentioned The Cross and the Switchblade (1962) and the very impressive The Vision (1974). Last book and its successor (The Vision and Beyond, 2003) are dealing with divine prophecies about severe misconduct, problems and disasters the world is facing in the future (and already partly happening); he also revealed that the so-called "Number of the Beast" (Antichrist) will be composed of a combination of three times six numbers. He also wrote about other divine prophecies such as riots and arsons cities in the United States (especially New York City) but also worldwide are going to endure in the future because of their sinful behavior, and countries going bankrupt causing shopping and money problems worldwide.