I posted an article on this topic from Dr Sproul last year, but it bears repeating…
by Dr R.C. Sproul
“The sinfulness of sin” sounds like a vacuous redundancy that adds no information to the subject under discussion. However, the necessity of speaking of the sinfulness of sin has been thrust upon us by a culture and even a church that has diminished the significance of sin itself. Sin is communicated in our day in terms of making mistakes or of making poor choices. When I take an examination or a spelling test,if I make a mistake, I miss a particular word. It is one thing to make a mistake. It is another to look at my neighbor’s paper and copy his answers in order to make a good grade. In this case, my mistake has risen to the level of a moral transgression. Though sin may be involved in making mistakes as a result of slothfulness in preparation, nevertheless, the act of cheating takes the exercise to a more serious level. Calling sin “making poor choices” is true, but it is also a euphemism that can discount the severity of the action. The decision to sin is indeed a poor one, but once again, it is more than a mistake. It is an act ofmoral transgression.
In my book The Truth of the Cross I spend an entire chapter discussing this notion of the sinfulness of sin. I begin that chapter by using the anecdote of my utter incredulity when I received a recent edition of Bartlett’s Familiar Quotations. Though I was happy to receive this free issue, I was puzzled as to why anyone would send it to me. As I leafed through the pages of quotations that included statements from Immanuel Kant, Aristotle, Thomas Aquinas, and others, to my complete astonishment I came upon a quotation from me. That I was quoted in such a learned collection definitely surprised me. I was puzzled by what I could have said that merited inclusion in such an anthology, and the answer was found in a simple statement attributed to me: “Sin is cosmic treason.” What I meant by that statement was that even the slightest sin that a creature commits against his Creator does violence to the Creator’s holiness, His glory, and His righteousness. Every sin, no matter how seemingly insignificant, is an act of rebellion against the sovereign God who reigns and rules over us and as such is an act of treason against the cosmic King.
Read the rest of the article here.
Further Reading: The Seriousness of Sin