[Calvinistic tradition] has fashioned and shaped my thinking since I was a teenager.

In many ways the book [Saving Calvinism] is trying to argue for a more popular audience things I've said in some more scholarly works, namely, that the Reformed tradition is broader and more variegated than is often reported today, and that we need to recapture something of this in order that we don't end up unnecessarily narrow in our doctrine and in order to keep some perspective.

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

Now, don't get me wrong: I'm not rubbishing penal substitution. But there are other options that have been advocated by Reformed thinkers of the past.

I recommend Doug Sweeney's recent book [Jonathan] Edwards the Exegete (Oxford University Press, 2015), which is a terrific treatment of the way in which Edwards was steeped in the Bible, so that it shaped the whole of his thinking.

No confession is inerrant; Reformed Christians are supposed to be those who seek to be constantly reformed according to the Word of God - and that includes our confessions as well.

[Jonathan] Edwards definitely shows up in the book [Saving Calvinism]. He appears as one of the interlocutors in the chapter on free will, the other being the Southern Presbyterian theologian John Girardeau.