For his 35th studio album, “Tempest,” Bob Dylan wanted to write religious songs and ended up hopping a freight train to the apocalypse. Couching images of end-times America in old-time American melodies, the 71-year-old has delivered his most compelling release in more than a decade. That’s faint praise for anyone who gave up on Dylan after the Carter administration, sure, but find me another rock demigod crafting tunes this violent in their golden years.