Easily the most important advance in Judeo-Christian relations in 100 years, Commonwealth Theology (CT) cuts across denominational divisions to reveal God's plan for the Church and the Jews. CT is based on a more literal interpretation of the Scriptures. Interpretations have, since the 2nd century, been influenced by man's philosophy and politics. Beyond the basics of Christian salvation, mainstream theologies are at odds. Catholic, Reform, and Evangelical interpretations of Bible prophecy don't agree because they have all overlooked the obvious. Is it possible that the truth has been concealed for nearly 2,000 years? The clash of mainline Christian views is, in itself, proof that something has gone wrong. The surprising solution that will unite God's people has been right there in God's Word all along. In January 2018 Douglas W. Krieger premiered his groundbreaking work, "Commonwealth Theology: An Introduction." Joined by Bible researchers, Dr. Douglas Hamp, Dr. Gavin Finley, and Chris Steinle, "Essentials" expands the application of Commonwealth Theology to address even more aspects of biblical theology - areas of theology which have either been ignored or contradicted within mainstream theologies. "Essentials" is presented in two main sections: Elements of Commonwealth Theology; and, Commonwealth Eschatology. Following the introduction, which lays out the need and benefits of CT in defining the relationship between the Jews and the Church, the "Elements" section summarizes the core theological basics from Krieger's initial work; as well as covering new insights from all four of the authors. Some of the elements of CT expounded in the first sections include: Krieger's analysis of mainline Christianity's treatment of the Jews in terms of "Distinction" and "Separation"; Comparisons of Reformed, Dispensational, and Commonwealth Theology; The peace and unity purchased by Christ with implications for Gentiles and Jews; The plight of the two houses of Israel and the significance of the scattered Northern Kingdom; The mystery hidden but revealed in the New Testament; The import of the Jerusalem Council; Heresies adopted by the Early Church; False juxtaposition of Law and Grace; The Breach of Jeroboam; The two offices of Melchizedek; and, Israel's divorce and remarriage. Part II: Commonwealth Eschatology contains, among other topics: How to reconcile partially fulfilled Messianic prophecies; The thematic view of Revelation; The Future 70th Week; The Gentile connection to Jacob's Trouble; Analysis of the Resurrection/Rapture; and, What happens on the Day of the Second Coming?