“But what is known about this man, Antichrist? His precise ancestry is unknown. His father is completely unknown, while his mother is a defiled, pretended virgin. He will be a Jew from the tribe of Dan. There is an indication of this, in that Jacob, when dying, said that [Dan], in his posterity, would be a serpent by the way.. .biting the heel of the horse (and the rider shall fall backward) [Gen. 49:17]. This is a figurative indication that he will act with craftiness and evil.”
(St. John of San Francisco, sermon excerpt)