Like the facts of a legal case, the veracity of a Biblical story is irrelevant to its role of adding depth to a legal rule or axiom. Like the facts in a seminal Supreme Court case, the stories of the people in the Bible provide the context necessary to fully comprehend the values they adhered to and incorporated into law.
As you read the ten chapters in this volume, experience them with others, stopping frequently to discuss the ideas presented. Have a copy of the Bible handy at all times; any version will do. Read with a secular lens as well. Faith is not a necessary attribute for this discussion. One need only understand that the drafters of all of the foundational legal codes in the Western world were schooled using these stories.