Yes. There have been many new covenants offered by God. You should read the Bible.
Individual covenant-Family covenant-Tribal covenant-Nation covenant-All humanity covenant (which is the “new” covenant).
When God makes a covenant with an individual, a family, a tribe, a nation, or in our case as Christians, the world through the New Covenant, it does not mean He breaks the old covenant. It still holds for those who were bound by it.
I say again. Read the Bible.
Then doesn’t this mean that a Jew today would have to fulfill all the Laws of the Old Covenant, i.e. sacrifice an innocent animal (as symbolic of the coming Messiah) for his sins at the Temple?
The Old Covenant with the Jews only was not abolished, but fulfilled at Pentecost, in the idea that the Law is written on the hearts of those who believe in God’s chosen Son.
A better thing has come with the ability to live in the Spirit of the Law — desiring to keep the commandments for example, instead of being threatened by them —
Being Kosher today seems futile unless, as Paul wrote, one fulfills every aspect of the Old Covenant to the letter.
But since the Temple Curtain where the holiest of the holies was, for Temple sacrifice for the Jews, since it was miraculously torn (do the research on the curtain... it was four inches thick of laminated linen) since it was torn when Jesus died on the Cross...
(Meaning God’s spirit no longer was in the Temple...but poured out on Jew and Gentile alike at Pentecost)
... I have no idea how a Jew today who rejects Christ’s sacrifice for their personal sins could be saved. I was led to the Lord by Messianic Jews and do not take any pleasure at all at this thought, in fact have cried rivers for some unbelieving Jewish friends.
Trying to stuff God back into the Temple, resurrecting all the Temple ritual, stoning people for the sins, etc., etc., there is no way that someone can live up to the standards of the Old Covenant.
Though the Bible speaks of “the man of sin” in the End Times who will apparently try to go for it.