He also seems to have linked Christ with the concept of Messiah ben Joseph, referring to him as “the sixth day” and as Satan. According to 10th-century legend, the Antichrist would be the offspring of a virgin and the devil, and the 11th-century CE Midrash Vayosha describes "a monstrosity" anti-Messiah figure which will be defeated by the "Mashiach ben Yoseph" to come. Being Gog's successor, his inevitable destruction by "Messiah, son of Joseph" symbolizes the ultimate victory of good over evil in the Messianic age.