One of the best definitions of pietism I"ve ever read, not mine but excellent:
The Definition:
"Pietism is making our love for God the main focus of Christianity, instead of His love for us."
Exposition:
"œIt (pietism -ldh) doesn't say, "Never mind God's love," of course, nor does it deny that "We love Him because He first loved us." It's a matter of , of . It says rather, "Yes, yes, of course God loves you. That's a given. But do YOU love HIM?" It views salvation as the spark that starts the Christian eruption, the pot in which the Christian is planted so that he might start growing--but not as the continuing focus of the Christian life. It (salvation/justification/Gospel -ldh) becomes something too basic to think about, something assumed, and all the energy of the Christian life comes to be focused on growing, on perfecting ourselves, on showing God how grateful we are--and inevitably, on keeping up spiritually with the Joneses."
"œThe insidious thing, of course, is that Christian growth is good. "Study to show thyself approved unto God, a workman that needeth not to be ashamed." BUT when we make "œprogress" and "œtriumph" in the Christian life our main goals, and treat the Gospel as nothing more than something we needed back at the beginning to get us launched on the Christian adventure (even if we would never "œsay" such a thing!), we unavoidably start approaching Christian growth as something we do for God--with His help of course!--instead of something that He does for us."
"œAnd then you get "œThe Purpose-Driven Life", a book that mentions salvation in one or two chapters, but whose whole purpose is to psyche you up to get out there and live triumphantly! It's no coincidence that Rick Warren explicitly says in that book that sanctification is a 50/50 proposition: us and God working together, with God willing to match us dollar-for-dollar, so to speak--to keep putting gas in the tank as long as we keep it floored."
"œAnd along with this Pietistic emphasis comes, often, a cavalier carelessness about doctrine. Christianity is about DOING, about GROWING! If you've believed on Christ at some point, you already have the faith-content part down, so what use could there be to debating Soteriology? Or understanding the Sacraments? What you lack is perfection! Get out there and start perfecting!"
"œBut Pietism isn't always careless about doctrine. Historically, the word "Pietism" refers to the kind that denigrates doctrine in favor of devotion, but contemporary Pietists quite often feel the need to learn this or that "secret of Christian living"--some new illuminating interpretation, or prayer of special value, that will help them live triumphantly (think: The Prayer of Jabez). And some people who are the most dismissive of "Pietists," and the most maniacal about understanding all doctrine just perfectly, are actually approaching Christianity in a very Pietistic way for all that, because all their focus is on perfecting their own knowledge, on making themselves more acceptable to God intellectually."
Conclusion:
"œChristianity is about sin and redemption. It's about death and new life. It's about Good Friday and Easter. It's the news that Christ has died for us that we might live in Him. That's the essence. You can grow in Christianity, but you won't grow by leaving these things behind and going on to more advanced or more "spiritual" things. Nothing is more advanced or spiritual than that. The meat that St. Paul exhorts us to seek, leaving the milk behind, isn't something different than what came before, BUT a deeper understanding of the same thing, and of its implications for our lives. We grow by returning always to the center, owning ourselves sinners, and gratefully receiving Christ's incredible pardon. Sanctification isn't our project. He changes us. That doesn't mean we should spurn opportunities to serve and witness, or eschew spiritual disciplines. It means, rather, that we should regard all such things as medicine for our own sick souls, not as training programs designed to make us SuperChristians--or worse, forums in which to prove that we are SuperChristians already. If you're confronting your sinfulness and receiving Christ's forgiveness on a regular basis, always revisiting the Gospel, keeping THAT as your focus, it's really hard to start thinking of yourself as SuperChristian material."
Ldh