The Bible is divided, quite literally, into two covenants. With this understanding we should be intent to understand the idea of covenant and its implications for us as believers. David examines the theology of covenant in a way that confirms the consistency of the Scriptures. With a greater revelation of covenant comes a worldview that empowers and informs our relationship with Jesus Christ.
“it is vital to grasp that according to Scripture there is a sense in which every believer has been sanctified already” (Page 171)
“The divine initiative must be met by the response of faith, which inevitably issues in obedience if it is genuine” (Page 13)
“‘through the obedience of the one man the many will be made righteous.’ The effects of the disobedience of Adam are reversed for believers by the obedience of Christ.” (Page 19)
“At this point the sinner is enabled by the Holy Spirit to respond to the gospel message, read, heard or remembered” (Page 133)
“A Treatise of God’s Effectual Calling: ‘The covenant of God is a promise under some certain condition.’1” (Page 11)
David McKay has accomplished a remarkable goal in this book. He covers the full range of the topics of Christian doctrine from the standpoint of Covenant Theology, showing the relevance of the covenant in all aspects of faith and life. This is, in fact, a covenantal systematic theology. Particularly useful is McKay's treatment of contemporary issues from a covenant perspective: e.g., neo-orthodoxy, the New Age Movement, feminism, evolutionism, the "open view of God," etc. He interacts with an amazing range of Reformed authors, from Calvin to the Puritans to Murray, Van Til, and Reymond. I enthusiastically commend this work, and will use it in my seminary courses.
—Wayne R. Spear, Professor Emeritus of Systematic Theology, Reformed Presbyterian Theological Seminary, Pittsburgh, Pennsylvania