The Christian Church has many stirring rally hymns, but none that is more effective when sung by a large assembly than George Duffield’s “Stand up, stand up for Jesus.” Who has not been moved to the depths of his soul by the inspiring words and resounding music of this unusual hymn? A tragedy lies in its background. It was in the year 1858, and a great spiritual awakening was gripping the city of Philadelphia. Men referred to this revival afterwards as “the work of God in Philadelphia.” One of the most earnest and zealous leaders in the movement was a young pastor, Dudley A. Tyng, not quite thirty years old. Because of his evangelical convictions and his strong opposition to slavery he had shortly before been compelled to resign as rector of the Church of the Epiphany, and in 1857 he had organized a little congregation that met in a public hall. In the midst of the revival in 1858 he preached a powerful sermon at a noon-day meeting in Jayne’s Hall to a gathering of 5,000 men. His text...