Hebrews

Besides the handbook by Kostenberger(2020), I'll go to Morris first. That is because Morris' brevity allows me to solidify thoughts on the forest before examining the trees, building the frame before trimming the walls. But that doesn't mean at all that Morris is lacking crucial details. Often the same insights will be here as Bruce or others in many less words. Morris is always marked by admirable common sense, clarity, brevity and a steering away from unhelpful speculation. For example, you will find this almost immediately by picking up and reading any commentary by Morris, whether it be Matthew, Luke, Hebrews, Revelation etc. He will tell often tell you why traditional conclusions are not without good reason, like not knowing who the author of Hebrews is, though he will give you a brief lay of the land. Anything by Morris is worth having and reading. He wrote commentaries on most NT books and even one on Ruth, and I have read most of them.

It is technical but really good read - what is typical to Morris, his writings are always readable even when technical in their nature. He presents good understanding of Hebrews 6 (true Christian cannot commit apostasy), and - good understanding of the theme of Hebrews overall. I would encourage you to read everything that man has written, edifying and soul nourishing in the same time.