It is out of the heart that man's problems arise. And we can not and must not try to lay the blame elsewhere. The heart is deceitful above all things and beyond cure. As the result of the fall into sin, man's heart is desperately wicked and deceitful. Man's troubles, in other words, are at the very center of his being.
Purity has two meanings.
Boston made it unlawful to bathe, except on a doctor's prescription. In 1843 Philadelphia made bathing illegal between November 1 and March 15. How tragic that most people have a similar attitude toward spiritual cleansing. Without defilement, cleansed, washed. It's important to have this kind of purity.