John Chrysostom
Paul, always imitating his Teacher, speaks now of lowly things and now of lofty things. Thus the lowly prepares the way to the lofty, and the latter leads back to the former.
In this way those who see the lofty things know that the lowly things were the work of Christ's condescension. He does the same here.
Having said that He "offered Himself as sacrifice," and having shown that He is High Priest, the Apostle continues: "The chief point in what we are saying is this: we have such a High Priest, who sat down at the right hand of the throne of Majesty in the heavens."
This no longer belongs to a priest, but to Him whose priest He is. [...] "The chief point," he says, "in what we are saying." The chief point is always called the most important thing.
Here he again brings his discourse down. Having spoken of lofty things, he now speaks without danger about lowly things.