The late John Stott in Confess Your Sins:
We are not in the least ashamed of the fact that we think and talk a lot about sin. We do so for the simple reason that we are realists. Sin is an ugly fact. It is to be neither ignored nor ridiculed, but honestly faced. Indeed, Christianity is the only religion in the world which takes sin seriously and offers a satisfactory remedy for it. And the way to enjoy this remedy is not to deny the disease, but to confess it.