“If you want to judge how well a person understands Christianity, find out how much he makes of the thought of being God’s child, and having God as his Father. If this is not the thought that prompts and controls his worship and prayers and his whole outlook on life, it means that he does not understand Christianity very well at all.
For everything that Christ taught, everything that makes the New Testament new, and better than the Old, everything that is distinctively Christian as opposed to merely Jewish, is summed up in the knowledge of the Fatherhood of God. “Father” is the Christian name for God. Our understanding of Christianity cannot be better than our grasp of adoption.”
—J.I. Packer, Knowing God (Downers Grove, IL: 1993), 201-202
(HT: Of First Importance)
PS. I just learned about acknowledging your source while blogging, from this source, when I did a google search on the meaning of HT)
Cheap vs. Costly Grace
“Cheap grace is the enemy of the church. It means forgiveness of sins proclaimed as a general truth . . . an intellectual assent to that idea is held to be sufficient to secure remission of sins. Cheap grace is the preaching of forgiveness without repentance. . . grace without discipleship, grace without a cross . . . Costly grace is the gospel [of the church] . . . It is costly because it costs a man his life, and 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 . . . it is grace because God did not reckon his Son too dear a price to pay for our life. Costly grace is the Incarnation of God . . . When Christ calls a man, He bids him come and die.”
- Dietrich Bonhoeffer, The Cost of Discipleship (New York, NY: MacMillan, 1959), 45-48.