Today we’ve almost done away with the idea of sin. Our culture rejects sin as old-fashioned, so we’ve taken away the word sin and replaced it with new words in our vocabulary. 

Some of these high sounding phrases are: error, mistake, misjudgment, weakness, psychological maladjustment, glandular malfunction, and a stumble upward—anything but sin. 

We’ve gone through the medicine cabinet and put new labels on old bottles of poison. So we have new terminology. We’ve tried to change things by changing the words, but they’ve not really been changed at all. We have some egg-headed people who have—with all of their learnedness and intelligence—somehow made “sin” to be out of date. (lwf.org)