A policeman wears a badge and that gives him authority. A scholar is an expert in a certain field and that grants her authority. Parents have authority over their young children. Dr. John teaches from Luke on the authority of Jesus Christ proved by His words and works. Jesus has the authority of the Law, Wisdom, and Love. He has the authority of God Himself.A Firm Grip on the Gospel: Anyone who has read the four Gospels is struck by how different they are. These accounts focus on the life and death of Jesus, yet they each have a particular theme and emphasis. In this four-week series, Dr. John Neufeld points us to the Gospel of Luke and traces the intent of the only Gentile writer of a New Testament book.