Hi Retrobyter,
Regarding 'the one being built by our Master Yeshua', I see that as a current undertaking on His part, which at some 'time' in the future, will be completed. :)
I just wondered whether others have ideas about who wrote Hebrews.Getting back to the original post, we should simply understand that "no continuing (Greek: menousan) city" means "no permanent city," and the key idea is in the contrast between the words "HERE" and "WE SEEK ONE TO COME!" The word translated "we seek" is from the Greek word "epizeetoumen" meaning "we CRAVE" the one to come! Thus, the verse implies TIME as well as POSITION. This "permanent city" is what Avraham was seeking but will not be experienced fully until the New Jerusalem AFTER the Fire and the New Earth with its New Atmosphere has been created/renovated.
Even the city of Jerusalem during the Millennium (the 1000 years when haSatan is chained) is not a "continuing city." We await the one that is being built by our Master Yeshua`.
Oh. So, by the way, no, it doesn't make any difference who wrote Hebrews.
Regarding 'the one being built by our Master Yeshua', I see that as a current undertaking on His part, which at some 'time' in the future, will be completed. :)