There are constraints on what counts as "Reformed." It's more than a name or a label. It's about belonging to a particular theological stream or tradition, which is shaped in important respects by particular thinkers and their work, particular arguments and ideas, a particular community (especially, particular church communities, denominations, and so on), particular liturgies or ways of worshipping and living out the Christian life, and particular confessions that inform the practices of these communities.

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.

For those who have only ever read about [John] Calvin, reading the man himself is an invigorating experience.

Reading [John] Calvin is a breath of fresh air.

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

It is often reported that the Five Points of Calvinism are the conceptual hard-core of Reformed thought. That is very misleading. The Five Points supposedly originate with the Synod of Dort in the early seventeenth century. Yet we find important Reformed leaders who were signatories to that documentation who don't think that limited atonement is the right way to think about the scope of Christ's saving work. How can this be? The answer that recent historical theology has thrown up is that the canons of the Synod don't require adherence to the doctrine of limited atonement.

For instance, there are many mainstream Reformed theologians that deny the doctrine of "limited" atonement (the "L" in TULIP, the acrostic for the Five Points of Calvinism). These are not thinkers on the margins or troublemakers. They are leaders at the center of Reformed thinking like Bishop John Davenant.