and exhortation,4 but 10:25 completes the exposition and from that point the homily turns to an extended run of exhortations.5 Within these exhortations a last important break can be noted following the climactic appeal of 12:25–29. While chapter 13 remains integral to the book as a whole, it has a looser formal attachment than the preceding sections do. The dominant Christological category of 1:5–4:13 is Sonship, while that of 4:14–10:25 is High Priest. With this shift corresponds another: cosmos