This historical work gathers the correspondence of John Wesley and James Hervey on the subject of justification by faith, capturing the beginning of their public feud. In these letters, Wesley responds to Hervey’s work, Theron and Aspasio—a work many considered to be antinomian—and Hervey responds to Wesley’s objections. The result is a fiery exchange that sheds light on critical debates within the Church of England and the dawn of the Wesleyan tradition.