Very early in church history, believers had to recognize what the mark of Christianity was. As the gospel spread beyond the country and culture of israel, the church debated what the identification of God's promise was. Dr. John teaches that the mark of the gospel was faith. Faith was and is the sign of God's covenant.Abraham: Father of All Who Believe: The faith of Abraham is the basis for our faith today. To study Abraham is to study the life of faith. James refers to Abraham as “God’s friend”, a title used of no one else in Scripture. In this four – week series, Dr. Neufeld unpacks the significance of Abraham’s life of faith and its importance in laying a foundation for God's people to follow.