"Les Miserables" by Victor Hugo. That book embodies so much: love, redemption, justice, perceived justice, human growth, rebellion, religion...it can be a hard slog of a read at times but Hugo really gives his characters space to develop and for you to care about. The Bishop, who is given a passing glance in both the musical and movies, is so much more in the book. Highly recommend to everyone.

[edit: "revolution" -> "rebellion"]