In the Cost of Discipleship, Bonhoeffer writes: “Cheap grace is the preaching of forgiveness without repentance, baptism without church discipline, communion without confession…
Costly grace is costly because it calls us to follow, and it is grace because it calls us to follow Jesus Christ. It is costly because it costs a man his life, and it is grace because it gives a man the only true life. It is costly because it condemns sin, and grace because it justifies the sinner. Above all, it is costly because it cost God the life of His Son: ’ye were bought at a price.’ and what has cost God much cannot be cheap for us.”
