Some of my favorite lines from Dietrich Bonhoeffer on grace.

Cheap grace means grace as bargain-basement goods, cut-rate forgive­ness, cut-rate comfort, cut-rate sacraments; grace as the church’s inexhaustible pantry, from which it is doled out by careless hands without hesitation or limit. It is grace without a price, without cost…

Cheap grace is that which we bestow on ourselves.

Cheap grace is preaching forgiveness without repentance; it is baptism without the discipline of community; it is the Lord’s Supper without confession of sin; it is absolution without personal confession. Cheap grace is grace without discipleship, grace without the cross, grace without the living, incarnate Jesus Christ.