I know it sounds nuts, but stay with me.
First, however, let me say that Piper’s renewal of emphasis on the affections has been very significant. It touches a nerve for people. It gives expression to something that we desperately need. It gives voice to something that some strands of evangelicalism have neglected. So don’t mishear me when I say that it is as important to locate the affections correctly, as it is not to neglect them.
So what do I mean?
Roman Catholic doctrine is that we are justified by faith and love. Make sure you hear this. As my theology lecturer at Moore college stressed, Roman Catholicism is not rankly Pelagian; it knows better than to say we simply earn our salvation. It is more subtle – and more dangerous – than that. It holds that salvation is by grace (the grace of Christ, received sacramentally), but that what unites us to the grace Christ is not bare faith, but faith plus love. In this, as in so many things, Augustine is their teacher.
It was precisely this that the Reformers objected to. The reason is, of course, that faith plus love gives us a boast before God, we can point to something worthy about ourselves, our love.
So here’s the rub. For Piper, is faith one of the affections? Because if it is, then it seems to me that it is dangerously close to being a faith+love complex, a real quality in me. On the other hand, it seems to me that Scripture teaches that faith is ‘bare’.
The key text is Jn 3.14. ‘Just as Moses lifted up the serpent in the wilderness, so must the Son of Man be lifted up, that whoever believes in him may have eternal life.’ Faith here is depicted not as a thing but, you might say, as a vector; not a real quality in me, but merely the direction of my gaze towards Christ, like Israel in the wilderness – bare faith. If you’ve ever asked the question, ‘Why isn’t faith a work?’, you’ll know something like this is the only answer.
Of course, I may have misheard Piper, and he wouldn’t say faith is an affection like this. Although if that’s the case, then the stress on the affections seems ungrounded.
Faith – bare faith – faith as a vector, a direction of gaze, quite apart from any quality in me – faith is what unites us to Christ. It is through this faith, therefore, that we are justified by Christ; and it is through faith that we are sanctified by Christ, bearing the fruit of the Spirit, including the affections.