Thanks for the post! I see Hebrews as written by Paul to prepare Jews (not gentiles) for the end of the age with the destruction of the Temple. Paul was key in providing a way for gentiles to gain full acceptance into the Body Of Christ, but he never gave up his adherence to the law. In Acts he states that “I am a Pharassee”. However, this option was soon to come to an end, so Paul has to provide a theological basis for “good Jews who have accepted Messiah” to move on after the Age of the Law. This - I believe - is the motive behind Hebrews.
I so many words you stated what I wrote