The Michael McGiffert manuscript is a unfinished encyclopedic book titled "God's Covenants: A Study of Evangelical and Ecclesial Puritanism." The scope of the work includes "virtually every English, Scottish, and American" theological thinker from the sixteenth and seventeenth century who wrote about covenant theology. Also included is a brief introduction written by Francis J. Bremer that documents the history of the work and its importance to the field of theological literature. Each chapter includes extensive endnotes or footnotes.