The new covenant is built on better promises partly (and a large part at that) because we are
not required to follow the 613, of which Peter said none could. That means none of those to
whom it was given. So you have not yet identified which laws were to be carried out?
When I asked what you meant by the law, you said, "I mean all intsructions given by the Father
to mankind. From "be fruitful and multiply".... to the mosaic laws.... the commandments.... Holy days....
Sabbaths.... etc. Of course all laws weren't given to all people for all times."
Since the new covenant will "not be like the covenant I made with their fathers"
(those are God's words 
), how do you think if differs if the laws have not changed?
It seems contradictory to say parts of the law no longer apply and say at the same time the law
has not changed. The Mosaic law included all 613 mitzvot and was considered to be a whole from
which nothing could be subtracted or ignored. You refer to holy days and Sabbaths as part of
the law, when Sabbath keeping was not mentioned as part of the New Covenant. That is because
the Sabbath rest refers to Jesus, and the fact that we do not work for our salvation
I look at the covenant like a lease. The Messiah paid the past due rent so that a new lease could be signed.... this does not mean the no dog or no smoking policies no longer apply.
The first covenant had earthly penalties (curse of the law) associated with breaking the laws (sinning). The Messiah's body paid this debt. That to me is what has changed regarding law.... not the laws themselves, but the penalties associated with breaking them.
There is no specific new covenant list of laws because it was known that the coming Messiah would have had to have been in line with the Father. He taught from the torah and the prophets... and corrected the misinterpretations the people had.
If there is not a new set of laws, then there would be no need to mention every law from the OT. I think Matthew 5:18-19 is clear enough though.
I do believe that there are indications in the NT that we are to keep the Sabbaths and other laws, but some of them are misinterpreted to mean the opposite of what they are saying. (E.g. Col 2:16)
Works (keeping law) are supposed to represent our faith. We don't work FOR our salvation. We follow law out of love, honor, respect, and trust in our Father. The spirit of the the law is found in the "two great commandments".... its the WHY we do what we do. If we are trying to keep the law for SELF then we really aren't keeping the law at all.
