In "The High Calling," Sheldon likely explores themes related to Christian faith, social responsibility, and moral decision-making. The novel may follow the lives of characters who grapple with ethical dilemmas and strive to live out their faith in their daily lives.As with much of Sheldon's writing, "The High Calling" is likely characterized by its inspirational storytelling, strong moral themes, and emphasis on living a life of Christian discipleship. Sheldon was known for using fiction as a means to challenge readers to consider how their faith should inform their actions and interactions with others.Overall, "The High Calling" is likely a thought-provoking and spiritually uplifting novel that offers readers insights into what it means to live a life of faith and integrity. It may appeal to readers interested in Christian fiction and stories that explore the intersection of faith and social justice.