Lesson #9—Dietrich Bonhoeffer (20^th century):  Beware of cheap grace.  Bonhoeffer was another Christian thinker who took part in an insurrection (a plot to kill Adolf Hitler).  Bonhoeffer, too, was sentenced to death.  In this case, however, the death sentence was not revoked and he was hung with his conspirators just prior to the end of World War II.  Fortunately, however, Bonhoeffer had already completed many great works of theology, including his classic book The Cost of Discipleship.  This work contains profound insights into the importance of self-denial and suffering for the Christian, thus echoing the same emphasis in Augustine, a’Kempis, Calvin, and Edwards.  Bonhoeffer distinguishes between cheap grace (preaching forgiveness without repentance) and costly grace (which is premised upon repentance).  There is no such thing as cheap grace, Bonhoeffer reminds us.  Jesus tells us to take up our cross and turn from sin.  If we don’t do so, then we are not truly under grace.