President Trump has repeated several times when referring to this peace deal: paraphrase: the biggest thing since 3,000 years or at least 500. So what happened about 3,000 years ago?
Answer:
United Kingdom of Israel: The traditional date for King David becoming king is 1006 BC, marking the start of a "golden age" for the kingdom under his rule and his successor, Solomon.
Things that make you go hmmmm.
What happened about 500 years ago? Several things, including Protestant Reformation and the discovery of America by Columbus. What just happened? Trump signed an EO bringing back Columbus Day as the holiday and ditching indigenous people day at the federal level.
Things that make you go hmmmm.
The specific reason would be dispensationalism. A heresy that blossomed due to private interpretation of scripture, along with the Judaizing tendency. Of course, that is only how it played out in history, we don't have the counterfactual timeline to compare it to.
Dispensationalism is real, of course.
There was a time when God commanded that someone be put to death if you worked on Saturday.
Today, God does not command that we be put to death if we work on Saturday.
Why the difference, if not dispensationalism?
There was a time mankind were under the law. Today we're not under the law. Sounds like "a series of distinct historical periods" to me. What other explanation is there?
Covenants were made with specific people groups, the exceptions being the Adamic and Noahide.
Dispensationalists believe that the Abrahamic and Mosiac Covenants hold, and thus there is a special role for the race called Jews. It is not an accident this belief arises with Darwin and the belief in superior and inferior races.
It would be the greatest tragedy for Dispensationalists if all of Abraham's physical seed converted to Christ. Whereas it is the Father's wish that all men be saved, and the Apostles spent great effort in converting their ethnic brothers.
Edit: Of course the new covenant made by Christ is universally offered and is universally binding as well.
It's easy to prove that God dealt with mankind differently during different periods f history. I already gave the example of being put to death for working on Saturday when we were under the law.
Yet no Christian thinks someone should be put to death for that today, because we are under grace.
Romans 6:14
Anyone who believes Romans 6:14 does not believe the Mosaic covenant still holds.
Yet they are still dispensationalists to recognize the different periods of time where God dealt with mankind differently.
Hence, not all dispensationalists believe Abrahamic and Mosaic covenants hold, because they don't think the Mosaic covenant still holds.
The first problem with your example is that is implies God changes. He is eternal, and thus changeless.
The Law is given to a specific people for a specific purpose, to prepare the way for Christ. It is not how God treated all of Mankind, just a set way of life for a particular people. Hence a Covenant not some thing bound to time, as God himself is also not temporal. Not that it matters since the Torah was never implemented by the Israelites anyways. It also served to show how political power is not salvific, despite all the utopian systems since then.