""The Nature of Uncleanness Considered"" is a book written by Jean Frederic Ostervald in 1708. The book delves into the causes and consequences of the sin of uncleanness, which includes sexual immorality, impurity, and indecency. The author discusses the importance of maintaining purity and the negative effects of indulging in such sins. The book also provides guidance and advice for those who are struggling with the guilt of uncleanness, outlining...