Richard Snoddy offers a detailed study of the applied soteriology of the Irish reformer James Ussher (1581-1656). After locating Ussher in the ecclesiastical context of seventeenth-century Ireland and England, the book examines his teaching on the doctrines of atonement, justification,sanctification, and assurance. It considers their interconnection in his thought, as well as documenting his change of mind on a number of important issues, in particular how he moved from belief in a limited atonement and an assurance that is of the essence of faith to argue for a general atonementand an assurance obtained through experimental piety. Snoddy shows that, although Ussher appears to move from one logically inconsistent position to another, his thought contains an inner logic that questions the explanatory power of the scholarly paradigm in which he is typically studied. Snoddy draws on Ussher's literary material in a variety of genres: catechetical, polemical and devotional works, correspondence, and notes. It was in the pulpit, however, that Ussher was most expansive on the doctrines considered here. Nearly three hundred sermons survive in the notes of auditors,most of them unpublished, as well as dozens of sermon outlines in his own hand. Most of the material considered in this study derives from a close reading of these sermons. The book arises from the conviction that Ussher's theology deserves to be taken seriously in its own right though notabstracted from his social and political contexts.