Reformed theology and Calvinism have always seemed to me pretty much one and the same, though I have seen a different focus or personality to the one as opposed to the other.
For all intents and purposes, they are synonymous, in my opinion. But there are differences that start to emerge when you focus more narrowly on certain doctrines, when you start splitting hairs (as we love to do), differences between Calvin and Zwingli and Turretin and Beza, etc., from the Lord's supper to infralapsarianism and what have you. But, standing back, taking in the Reformers and Puritans as a whole, they are pretty much one and the same, yeah.
Formal covenant theology, I take it, is more important than I have realized. I have not done much more than a surface look at it, though I'm probably more aware of the mindset behind it than I realize.
I genuinely believe it's crucial, yeah. See also chapter 7 of the
Westminster Confession of Faith.
The doctrine of the covenant was one of the theological contributions that came to the church through the Reformation of the sixteenth century. Undeveloped earlier, it made its appearance in the writings of Zwingli and Bullinger, who were driven to the subject by Anabaptists in and around Zurich. From them it passed to Calvin and other Reformers, was further developed by their successors, and played a dominant role in much Reformed theology of the seventeenth century when it came to be known as covenant or federal theology. Covenant theology sees the relation of God to mankind as a compact which God established as a reflection of the relationship existing between the three persons of the Holy Trinity. … Among its early and most influential advocates were, besides Zwingli and Bullinger, Olevianus (Concerning the Nature of the Covenant of Grace Between God and the Elect, 1585), Cocceius (Doctrine of the Covenant and Testaments of God, 1648), and Witsius (The Oeconomy of the Covenants, 1685).
– M. Eugene Osterhaven, "Covenant theology," in
Evangelical Dictionary of Theology, ed. Walter A. Elwell (Grand Rapids, MI: Baker Book House, 1984), 279.
I can recommend some good books. For example,
- Beginner: C. Matthew McMahon, Covenant Theology Made Easy (Coconut Creek, FL: Puritan Publications, 2011).
- Intermediate: Michael Horton, God of Promise: Introducing Covenant Theology (Grand Rapids, MI: Baker Academic, 2006).
- Advanced: Guy Prentiss Waters, J. Nicholas Reid, and John R. Muether, eds., Covenant Theology: Biblical, Theological, and Historical Perspectives (Wheaton, IL: Crossway, 2020).
At this point, I'm guessing that covenant theology at least includes such notions as that God is the instigator/author and keeper of the covenants, and that he made them entirely for his own purposes, even irrespective of the faithfulness of the elect, ...
More or less, yeah. And, mind you, it all starts with the covenant of redemption (Latin
pactum salutis or
foedus redemptionis), which speaks to the intratrinitarian agreement before the foundation of the world "concerning the covenant of grace and its ratification in and through the work of the Son incarnate."
The roots of this idea, of an eternal intratrinitarian pactum, are clearly present in sixteenth-century Reformed thought, but the terminology came to prominence and became fixed only in the third and fourth decades of the seventeenth century in the work of such thinkers as Edward Fisher, Peter Bulkeley, John Owen, David Dickson, Johannes Cloppenburg, and Johannes Cocceius. ... The intention of the pactum salutis is to emphasize the eternal, inviolable, and trinitarian foundation of the temporal foedus gratiae [covenant of grace], much in the way that the eternal decree underlies and guarantees the ordo salutis. The biblical foundations of the doctrine vary among its exponents, yet arguably the central texts are the Pauline Adam–Christ parallels in relation to the understanding of legal and evangelical covenants, together with various messianic prophecies of the Old Testament. ... Christ is party with God in the pactum salutis and, on grounds of the pactum, believers are parties with God in the foedus gratiae as made possible by the work of Christ and union with him.
– Richard A. Muller,
Dictionary of Latin and Greek Theological Terms, 2nd ed. (Grand Rapids, MI: Baker Academic, 2017), s.v. "Pactum salutis."
According to covenant theology, the covenant of grace, established in history, is founded on still another covenant, the covenant of redemption, which is defined as the eternal pact between God the Father and God the Son concerning the salvation of mankind. Scripture teaches that within the Godhead there are three persons, the same in essence, glory, and power, objective to each other. The Father loves the Son, commissions him, gives him a people, the right to judge, and authority over all mankind (Jn 3:16; 5:20, 22, 36; 10:17-18; 17:2, 4, 6, 9, 24; Ps. 2:7-8; Heb 1:8-13); the Son loves the Father, delights to do his will, and has shared his glory forever (Heb 10:7; Jn 5:19; 17:5). ... On this [trinitarian] foundation, covenant theology affirms that [the Godhead] covenanted together for the redemption of the human race, ...
– Osterhaven, "Covenant theology," in
Evangelical Dictionary of Theology, 279-280.
I expect also that Covenant Theology will help me understand why some Reformed look at such passages as Romans 5, particularly verse 13, the way they do, with the focus they do.
Absolutely.