How does a person live the commandment to keep the Sabbath day holy in a world that is vastly different from the commandment's original context with Moses on Mount Sinai? Chapters in this volume explore the Sabbath throughout time, from both the Old Testament and the New Testament, the post-New Testament Christian Church during the second through the fourth centuries, the rabbinic teachings, and modern efforts to keep the Sabbath relevant, including the Restoration and other Christian and Jewish efforts.