Two distinct classes of demonic entities exist in the Book of Mormon: “unclean spirits” and “devils.” While some of the book’s teachings mirror demonology from the Hebrew Bible and New Testament, others introduce new concepts. For instance, the prophet Jacob describes Satan as the leader of disembodied devils, Lehi1 characterizes the adversary as “miserable,” and Jesus refers to the devil as the “father of contention.” Theologian Daniel Becerra explores these unique perspectives on Book of Mormon demonology in this interview.