“The Marrow of Modern Divinity is a book with an interesting history and an important message. The title is indicative of the book’s content: it is filled with choice quotations from key Reformers, including Luther, Calvin, Bullinger, Ursinus, and Ames. First published in 1645 by an English bookseller/barber/surgeon named Edward Fisher, it was also at the heart of a controversy in the eighteenth-century Scottish church. In the midst of that controversy, a minister named Thomas Boston published an edition of The Marrow that contained extensive explanatory notes on Fisher’s text. A 2009 edition published by Christian Focus presents Boston’s helpful, but sometimes cumbersome, notes in a reader-friendly format.”