One of the classic works by Dietrich Bonhoeffer is The Cost of Discipleship. The message of this book is still are quite relevant for the followers of Jesus in the twenty-first century. What is cheap grace?

Cheap grace means grace sold on the market like cheapjacks’ (a dealer in cheap merchandise) wares. The sacraments, the forgiveness of sins, and the consolations of religion are thrown away at cut prices (45).