Authorship of Hebrews and Psalm 2:7

I have been M.I.A. from Bring the Books because I have been working on my paper that I will be delivering at ETS on November 19th at 11 am. I have probably spent about 100 hours this year on this single paper. I am pleased with the research and conclusion of the paper but I need to work on the syntax and wording a bit more. One of the pieces of evidence I have found in my study that is pretty compelling to me is how Psalm 2:7 is used in the New Testament to prove a high Christology. Below in a section from my paper on this high Christology.

Hebrews and Paul both seem to have a high Christology. Hebrews 1:1-14 sets forth a Christ that is above the angelic beings. Likewise, Paul argues for an exalted view of Christ in Philippians 2:9-10 and Colossians 1:14-19. In relation to a high Christology, Hebrews 1:1-14 quotes five passages from the Psalter to make its point. The first of these is Psalm 2:7, which is alluded to by Paul in Romans 1:4 to make a strikingly similar point (i.e. high Christology). Further, this same passage from the Psalter is quoted by Paul, as recorded by Luke, in Acts 13:33. In this passage, as with the others, the point that is being made is a high Christology. The Romans and Acts passages link Psalm 2 with the resurrection, while the Hebrews passage links Psalm 2 with the ascension.