God and Satan figure prominently in this text, as well as many general references to religion and works of charity. As part of their intellectual lives, the men in the novel discuss various religious works. One sign of Mr. Hyde’s wickedness, for example, is his defacing Dr. Jekyll’s favorite religious work. Mr. Hyde is also frequently likened to Satan.
In Dr. Jekyll and Mr. Hyde, religion functions as a lens through which to view good and evil. It gives the characters rules with which to separate good from evil into distinct and clear-cut categories.