I think everyone who has an interest in Reformed theology, or just in Christian theology more generally, should read John Calvin Institutes.

The confessions don't speak with one voice. They are more like a cluster of closely-related but distinct voices - a kind of choir, if you like.

[Jonathan Edwards] he has to be engaged with on this issue if you're writing about Calvinism as I am in this book.

We may think that our tradition is exactly the same as it has always been, but that is an illusion.

Here is the interesting twist:[McLeod] Campbell came to his views through reading Jonathan Edwards who suggested at one point in his ruminations on the atonement that Christ could have offered up a perfect act of penitence instead of punishment, and that this would have been an acceptable offering suitable to remit our sinfulness.

These days I'm often called a Deviant Calvinist, but I don't really think my views do deviate from the Reformed tradition, though in some respects they may represent views that are not as popular now as they once were, or that may represent a minority report in the tradition.

In the twentieth century the Reformed tradition was developed in several ways including additional confessions (Barmen, the Belhar Confession, the 1967 Confession of the PC(USA), and so on). It was also significantly augmented by the work of important thinkers like Karl Barth, T. F. Torrance, Jürgen Moltmann, Emil Brunner, Kathryn Tanner, and so on.