The Son purged our sins by himself. This is a description of cleansing power. For many centuries man has used soaps and solvents to purify and whiten. It is an unfortunate thing, however, that the very detergents we use become pollutants. Streams are covered with foamy suds because detergents were flushed into them from the sewer lines of a great city.
Fish die and vegetation turns yellow and withers.
In an attempt at sanitation, we become unsanitary. In a desire to destroy germs, we destroy life. The master defiler of the ages is sin. Directly or indirectly, sin is the cause of all defilement in the universe. Man has no way of freeing himself from sin.