Amidst the millions of committed Christians in each generation, a handful rise to special prominence. Learn more about their exciting and inspiring lives in Barbour's Heroes of the Faith series.Greater love hath no man than this, that a man lay down his life for his friends. Those words of Jesus Christ, in John 15:13, are an eternal tribute to John and Betty Stam, who lost their lives for sharing the Gospel. While students at Moody Bible Institute, John and Betty felt God's call to the mission field of China -- where within a few years they had been arrested by hostile Communist soldiers, held for ransom, and then beheaded. Though their mission was brief, their courage led hundreds of other young men and women to volunteer for missionary service.