It is hard for non-believers to understand just why Christians are always so concerned with the idea of sin. Simeon Zahl, in an essay reprinted in Mockingbird (“Hiding in Plain Sight: The Lost Doctrine of Sin”) explains why, and why this is significant.
When I try to explain [to my students] that Christians have traditionally believed that human beings are deeply flawed from birth, and furthermore that God is profoundly unhappy about these flaws, I watch my students’ eyes grow skeptical. I watch their postures shift the way students always do when they disagree with what you are telling them. . . .
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My point is this: in the edifice of Christian belief, the doctrine of sin is a major load-bearing structure. It is not theologically optional. To lose it, or to downplay it, or to reframe it in terms that are less offensive to our sense of self-worth, is in the long run to render Christianity unintelligible to people.
This reminds me of C.S. Lewis, who made much the same point in his essay “God in the Dock”:
The greatest barrier I have met is the almost total absence from the minds of my audience of any sense of sin . . . . We have to convince our hearers of the unwelcome diagnosis before we can expect them to welcome the news of the remedy.
God in the Dock, 243–4 (1970).
Zahl goes on to offer some ways of thinking about sin which may communicate the truth about sin to modern people (like each of us) who have been trained to think in very different terms. He ends by saying:
It is only in our sickness that we recognize the Physician. It is our sin that makes Christ intelligible to us.
Worth the time.