OK, so you’ve read the title of this post and gotten entirely the wrong idea. That’s the problem with provocative titles; you lose people. So lemme ‘splain.
Heresy, properly understood, isn’t simply doctrinal error. Buddhists disagree with Christians about all sorts of things, but Buddhists aren’t heretics. More precisely, Buddhists aren’t Christian heretics: to be a heretic, you have to be a heretic with respect to something. Given that I’m a Catholic, and therefore believe in the Catholic Church’s teachings as the norm for Christian orthodoxy, Christians who dissent from the Church’s teachings are to some extent heretics. (That’s a technical description I’m making, not a moral judgement. The one person I’ve met who struck me as possibly being a genuine saint was an evangelical Anglican. She ate, drank, and slept intercessory prayer in a quite remarkable way. It really is who she was.)
But even in that context, heresy isn’t simply doctrinal error; it’s a particular kind of doctrinal error. Heresy involves taking one part of the truth to extremes, so that you abandon some other part of the truth. The Arian heretics emphasized the glory of the Father to such an extent that they refused to believe that Christ was truly God; rather, he was the greatest of all created beings.
In short, the interesting thing about a heresy, and the thing that drives everything else, isn’t so much what the heresy gets wrong, but what the heresy gets right.
In reading Sherry Weddell’s Forming Intentional Disciples, and in interacting with others who have read it, it’s clear that Evangelicalism is doing something right. Catholics who leave the faith usually leave either for no faith at all, or for some variety of Evangelicalism; and the latter usually leave because they’ve had a personal encounter with the rised Christ and nobody around them in church seems to get it. Then they meet an Evangelical, and personal encounters with Christ are a thing for them. They get it.
And then, many converts to Catholicism (or reverts, like me) have been greatly influenced by Evangelicalism. The Episcopal (later Anglican) congregation to which I belonged had a very Evangelical flavor to it, and my formation as a disciple owes a great deal to that. It’s through that experience (and others like it, earlier in my life) that I came to understand the importance of being a disciple. Mind you, I don’t feel like I met much success at it until I returned to the Catholic Church, and found all of the needed tools (the Divine Office, the aid of the saints, and most especially the Eucharist) ready to hand. It’s as though God’s using Evangelicalism to teach Catholics what discipleship means.
And so I think that discipleship is the truth that Evangelicalism is based on, the truth that gets emphasized so much that other truths are suppressed, or, at the least, ignored. They get discipleship right—very, very right. It’s a tribute to the loving power of Christ that it works so well for them in the absence of the helps I mentioned above. And it’s equally a tribute to the loving power of Christ that the Catholic Church is doing as well as it is without a strong emphasis on discipleship. I hope that with Christ’s help we’ll be able to change that.