Jesus announced to His disciples that He possessed “all authority in heaven and on earth,” and that they must “make disciples of all nations” by teaching them to obey His teachings (Matthew 28:18-20). This call to discipleship is rooted in the reality of the resurrection of Jesus in history. The origin and rapid growth of the Christian movement cannot be explained apart from this supernatural event. —Douglas Groothuis (from, Why Believe That Jesus Is The Only Way?)