Hebrews
Something I wouldn’t have noticed without a commentary:
Psalm 110 provides the key text of this epistle, and the significance of Christ’s being a seated high priest is explicitly set forth in the following chapters, especially in Hebrews 10:11-14, where he is contrasted with the Aaronic priests who remained standing because their sacrificial service never came to an end.
F.F. Bruce, The Epistle to the Hebrews



FF Bruce is one of my heroes. I love the books of Hebrews. Its use of the OT is so rich and power.
I love reading NT writers exposit OT passages. Proof texting isn’t always bad.
Someday I’m going to read Commentary on the New Testament Use of the Old Testament.
I purchased that one, but haven’t read it yet. Well I did skip through and read many of the introductions, but that was about it.