In his commentary on the Sermon on the Mount, The Cost of Discipleship, Bonhoeffer wrote, “Christianity without the living Jesus Christ, remains necessarily a Christianity without discipleship and a Christianity without discipleship is always a Christianity without Jesus Christ .... And a Christianity of that kind is nothing more or less than the end of discipleship. In such a religion, there is trust in God, but no following of Christ.” (The Cost of Discipleship, 64.)