Hmm...very good. You play the game of Got Ya very well <g>. Yes..."that" period was a unique, one-time period.
Do you doubt that Jesus ratified the New Covenant (NC), that he instituted at the Last Supper, when he shed his blood on the Cross? I'll assume you don't, in which case the Cross marked the inauguration of the NC. (But be sure to let me know if you do doubt this truth.) But in addition to this fact, when Jesus died, scripture tells us that the large, heavy thick curtain that separated the Holy Place from the Holy of Holies was rent in two from top to bottom (Mat 27:51; Mk 15:38). As you might know, God's Presence, in the form of the Shekinah Glory, was concealed in the Holy of Holies. And only the high priest on the Day of Atonement could enter that inner room of His Holy Presence. This supernatural act of tearing that curtain signified that God departed from that inner room! It signified that there is a NEW way into His Presence through the veil of Christ's body (2Cor 3:13-16). Therefore, our Lord's death also inaugurated the END of the Old Covenant (OC). So...two great spiritual events took place simultaneously upon the death of Christ. One new era started, while the other began to wither and die on the vine -- or to put this in more biblical language -- was getting ready to disappear and become obsolete (Heb 8:13). It's obvious (at least to me) that the writer of Hebrews clearly knew that he was in that transition period and that the OC was nearing its demise.
And when did this OC demise take place? 70 A.D. Scripture is silent on how the Jewish religious establishment dealt with the supernatural act of God in the Holy of Holies. I suspect there was a great cover-up, and that the high priest and others kept silent. The religious leadershsip could not have this kind of horrendous news leaking out to the masses. BUT...there was one thing that the religious establishment could not hide: The destruction of the temple! The temple, unlike that thick curtain hidden between the two inner rooms, was in plain view of all...until one day it wasn't any longer! The destruction of the temple had huge theological ramifications for the Jews -- chief among them is that God no longer dwelt in the Promised Land with his OC people! God sovereignly removed himself from the Land and his people. 70 A.D. signified God's divorce from the harlot nation Israel (Jer 3:8ff). From the moment God redeemed his people from their slavery in Egypt, his Presence was with his people in one form or another. Therefore, the destruction of the temple had profoundly horrendous religious, personal, social and even political implications to the Jews. The Jewish temple was God's house wherein he lived with his people -- until he irrefutably moved out!
Can you show me where the scripture explicitly states things like, the period of time between the cross and 70 AD was unique? a one-time transition period"? How about the phrase "Two Great Covenants"? Where can I find that phrase in my Bible? Where in scripture did you get your view of ratification? Where in scripture might I find the statement 70 AD consummated the end of the old covenant and what would be the scriptural precedent? Are you an early dater? If so, then what would be the scriptural precedent for an event happening after the canon of scripture is closed ending a covenant? Where can I find the ages of grace and truth labeled in scripture. John 1:17 states nothing about a "ministry." Are you aware the word "history" does not exist in the Bible?
Regarding the first question: I just did. Logical inference plus the writer of Hebrews certainly seemed to understand that he was in the middle of this transiston period as cited above.
Re the "two great covenants", see Heb 8:7-13; 10:9; 12:27-28. First and Second covenants? Really? Didn't the writer of Hebrews know that the OC was not God's "first" covenant, and since this is a literal fact, then how in the world could the New be only the "second" covenant? Oh wait...maybe we have a situation here that is similar to Adam and Last Adam -- or Adam and the Second Man? I mean...what IF the OC was but a shadow of the NC? How's that for a novel idea?
Literalism (or "letterism") is a killer! Scripture says so, in fact (2Cor 3:6). And this is a principle that runs across all genre of scripture -- not just the Law. Scripture is spiritual truth and, therefore, can only be understood rightly by the Spirit and in our spirit. Jesus' words that he spoke are spirit and life (Jn 6:63). I mean...if you take your "literalism" to the extreme, how in the world do you believe in the Trinity? Where's the word "trinity" in the bible? Or what about a doctrine like the "impeccability" of Christ? This term isn't found in the bible either. Or what about the doctrines of "infralapsarianism" or "supralaspsarianism"? We won't find these terms in scripture either. But in all these cases, we do find the
concepts for each of these doctrines.
For a guy claiming a reluctance to accept anything without Biblical precedent it looks like a lot is being added to the scriptures. Can you clarify any of that? Take it one question at a time.
At the same time, I'm also a guy who realizes I'm made in God's image, and he gave me a brain to be used for his glory. So...yeah...I have my hermeneutical boundaries that I use in conjunction with my God-given critical thinking skills. I'm neither narrow-minded or broad-minded; for either of these can be fatal! Rather, I'm critical-minded. At least I strive to be.