2 Thessalonians 2:10-12
10 And with all deceivableness of unrighteousness in them that perish; because they received not the love of the truth, that they might be saved.
11 And for this cause God shall send them strong delusion, that they should believe a lie:
12 That they all might be damned who believed not the truth, but had pleasure in unrighteousness.
@Redemptionsong Therefore, your answer is "No" to the question about whether any of the writers you named teach requirement for observing the Law of Moses and the Levitical Priesthood. That's because, as far as I'm aware, there is no teacher in Christendom that instructs about their requirements.
Andrew Murray does not understand the book of Hebrews or he is leading you astray.
@Redemptionsong You are a member of the Earthly Universal Roman Catholic Church. You are Not Saved.