“Cheap grace is the grace we bestow on ourselves. Cheap grace is the preaching of forgiveness without requiring repentance, baptism without church discipline, communion without confession. Cheap grace is grace without discipleship, grace without the cross, grace without Jesus Christ, living and incarnate.
Costly grace is the kingly rule of Christ. It is the call of Jesus Christ at which the disciple leaves his nets and follows him.”
~ Dietrich Bonhoeffer, The Cost of Discipleship