What's Up With Hebrews?

"For this reason the Epistle to the Hebrews is full of admonition and consolation, because it is in this way that the preservation of the Church is accomplished...These admonitions have as their end the preservation of the Church, which precisely in this way is established in that single direction, which is and which must remain irreversible--the direction from death to life!" (G. C. Berkouwer)