Let me give you a modern day illustration of a man whom I believe both understood and exemplified Jesus' words on self-denial, cross-bearing and following Him. Some of you may be familiar with the name Dietrich Bonhoeffer. He was a Lutheran pastor who lived in Germany during the Second World War. Convinced that it was his Christian duty to work within his own country for the defeat of Adolf Hitler, Bonhoeffer became a part of an underground resistance movement. Unfortunately, his involvement was discovered and he was sent to a prison camp. He never returned. In 1945, at the age of 39, he was executed by hanging, just as War II was ending. We may not share in all of his views, but by any and all definitions he is a 20th century Christian martyr.
By the time of his death he had already done quite a bit of writing. Perhaps his best-known work (still available and popular today) is entitled, "The Cost of Discipleship." In it he offers many thought provoking statements on the Christian life. One of the phrases he uses over and over again (and something he accuses many modern Christians of buying into) is the concept of "cheap grace."
Listen to how he defines it: "Cheap grace is the deadly enemy of our church. Cheap grace is the preaching of forgiveness without requiring repentance, baptism without church discipline, communion without personal confession. Cheap grace is grace without discipleship, grace without the cross, grace without Jesus Christ."