Sin and knowledge are linked in the Judeo-Christian tradition. The Bible begins with the story of Adam and Eve, who were expelled from the Garden of Eden for eating from the tree of knowledge of good and evil. As a result of their knowledge, Adam and Eve are made aware of their humanness, that which separates them from the divine and from other creatures. Once expelled from the Garden of Eden, they are forced to toil and to procreate—two “labors” that seem to define the human condition. The experience of Hester and Dimmesdale recalls the story of Adam and Eve because, in both cases, sin results in expulsion and suffering. But it also results in knowledge—specifically, in knowledge of what it means to be human. For Hester, the scarlet letter functions as “her passport into regions where other women dared not tread,” leading her to “speculate” about her society and herself more “boldly” than anyone else in New England. As for Dimmesdale, the “burden” of his sin gives him “sympathies so intimate with the sinful brotherhood of mankind, so that his heart vibrate[s] in unison with theirs.” His eloquent and powerful sermons derive from this sense of empathy. Hester and Dimmesdale contemplate their own sinfulness on a daily basis and try to reconcile it with their lived experiences. The Puritan elders, on the other hand, insist on seeing earthly experience as merely an obstacle on the path to heaven. Thus, they view sin as a threat to the community that should be punished and suppressed. Their answer to Hester’s sin is to ostracize her. Yet, Puritan society is stagnant, while Hester and Dimmesdale’s experience shows that a state of sinfulness can lead to personal growth, sympathy, and understanding of others. Paradoxically, these qualities are shown to be incompatible with a state of purity.
The characters in the novel frequently debate the identity of the “Black Man,” the embodiment of evil. Over the course of the novel, the “Black Man” is associated with Dimmesdale, Chillingworth, and Mistress Hibbins, and little Pearl is thought by some to be the Devil’s child. The characters also try to root out the causes of evil: did Chillingworth’s selfishness in marrying Hester force her to the “evil” she committed in Dimmesdale’s arms? Is Hester and Dimmesdale’s deed responsible for Chillingworth’s transformation into a malevolent being? This confusion over the nature and causes of evil reveals the problems with the Puritan conception of sin. The book argues that true evil arises from the close relationship between hate and love. As the narrator points out in the novel’s concluding chapter, both emotions depend upon “a high degree of intimacy and heart-knowledge; each renders one individual dependent . . . upon another.” Evil is not found in Hester and Dimmesdale’s lovemaking, nor even in the cruel ignorance of the Puritan fathers. Evil, in its most poisonous form, is found in the carefully plotted and precisely aimed revenge of Chillingworth, whose love has been perverted. Perhaps Pearl is not entirely wrong when she thinks Dimmesdale is the “Black Man,” because her father, too, has perverted his love. Dimmesdale, who should love Pearl, will not even publicly acknowledge her. His cruel denial of love to his own child may be seen as further perpetrating evil.
The novel suggests Hester’s independence comes at a price. The narrator seems sympathetic to Hester’s vision of a brighter future where “a new truth would be revealed, in order to establish the whole relation between man and woman on a surer ground of mutual happiness.” However, the narrator also makes the point that because Hester has been living outside of social conventions, she seems to have lost touch with key ethical principles: “she had wandered, without rule or guidance, in a moral wilderness.” The novel also ends with Hester returning to the community to live a humble life, and voluntarily choosing to start wearing the scarlet letter again, both of which suggest that by the end of the novel she has abandoned some of her independent and free-thinking ways. The descriptions of Pearl also suggest that female independence is antithetical to happiness. The narrator says no one knew if Pearl’s “wild, rich nature had been softened and subdued, and made capable of a woman’s gentle happiness,” implying that only by forfeiting her independent spirit could Pearl be truly content.