A comprehensive account of the major theological themes in the late sixteenth and early seventeenth century Puritanism of England and New England as seen through the concept "covenant of grace." The covenant of grace, von Rohr argues, enabled Puritanism to affirm both a continuation of Calvinistic predestinationism and an emergent voluntaristic pietism, pastorally both the absolute and conditional promises of God. An extensive array of primary source material is used in substantiating the author's thesis.