All Christians believe in the end of the world, and before that by all pagans, seeing as Ragnarok is clearly pagan in origin. Along with just about everything else to do with Christianity. For all intents and purposes Christianity is pagan Mithraism wearing a new name. Same dogma, costume, church hierarchy, terminology, festivals dates and all. Mithraism predates Christianity by thousands of years and is the ancient Persian version of the ancient Egyptian Horus story and early found it’s way into Rome.