Cheap grace is grace without discipleship, grace without the cross, grace without Jesus Christ, living and incarnate…
Costly grace is the hidden treasure in the field; for the sale of it a man will gladly go and sell all that he has….such grace is costly because it calls us to follow, and it is grace because it is 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 ti justifies the sinner. Above all it is costly, because it cost God the life of His son.
Grace is costly because it compels a man to submit to the yoke of Christ and follow HIm; it is grace because Jesus says “My yoke is easy and my burden light”
— Dietrich Bonhoeffer the cost of discipleship.