In this expansive cultural biography of Judas, prominent scholar Susan Gubar explores the meaning of Jesus' betrayer over twenty centuries. Who was Judas Iscariot and why did he betray Jesus? Despite the recent recovery of a Gnostic Gospel bearing his name, the centrality of the twelfth apostle has gone largely ignored. Yet, because of gaps and incongruities in his appearance in the Bible, artists throughout the ages have returned to this man, whose treacherous act inaugurates Jesus' death and resurrection. In this comprehensive, interdisciplinary work, Susan Gubar explains that a Jewish Judas was deployed to differentiate Judaism from emergent Christianity and that he therefore reflects ambivalence about a composite Judeo-Christianity as well as changing attitudes toward the body, blood, and money; greed and hypocrisy; suicide and repentance; homosexuality and divinity. Over twenty centuries, a figure of disgrace turns into a dignitary. Gubar shows how Jesus' most notorious disciple -- known for a kiss --has provoked profound reflections on the problem of evil that still resonate today.