The nineteenth-century Scottish theologian Edward Irving has been the subject of a remarkable resurgence of interest in recent decades, but many studies focus on specific aspects of his thought. This biography portrays Irving’s life and ministry as a whole, drawing on previously unused letters as well as his published writings to offer a readable and well-grounded narrative. Apart from the personal interest of this story, Irving’s thought and practice as a preacher and pastoral theologian remains worthy of serious attention.