Saints and sinners, all jumbled up together. Thats the genius of Johnny Cash, and thats what the gospel is ultimately all about.Johnny Cash sang about and for people on the margins. He famously played concerts in prisons, where he sang both murder ballads and gospel tunes in the same set. Its this juxtaposition between light and dark, writes Richard Beck, that makes Cash one of the most authentic theologians in memory.In Trains, Jesus, and Murder, Beck explores the theology of Johnny Cash by investigating a dozen of Cashs songs. In reflecting on Cashs lyrics, and the passion with which he sang them, we gain a deeper understanding of the enduring faith of the Man in Black.