Biltz originally proclaimed on his website in 2008 that the fall of 2015 would be the “Second Coming of Jesus”. A few years later, Hagee seized on that and a passage from the Biblical Book of Revelation where “the sun becomes black as sackcloth of hair, and the moon like blood” and turned it into an apocalyptic book called Four Blood Moons. That book eventually made it to the New York Times’ Bestseller List and there’s been a “documentary” film made about it. Biltz then released his own book in April of 2014 to get in on some of the bestseller list action and his publisher is suing Hagee to recognize Biltz with the discovery of the Blood Moon phenomena.