What is the author's tone in Narrative of Sojourner Truth by Sojourner Truth?

Gilbert writes the narrative in an open and honest style. Sojourner's life as well as other slaves' lives are laid out without too much combative language. It is obvious that Gilbert is sympathetic to the horror of the slaves' lives. Gilbert also points out Sojourner's misconceptions because she was raised as a slave and had to overcome much of her childhood and young adulthood. While Gilbert discusses the lack of Christian charity that white people showed their slaves, she does not show Sojourner as resenting the white people.