Calvary and the destruction of the Temple in 70 AD ended that nonsense.
Then why is God going to reestablish the sacrificial system with the buildig of another jewish temple at the beginning of the tribulation period?
Excellent question that I have pondered on as well. I believe that when someone makes a wrong turn, the best way to correct it is to go back to where the wrong turn was made and make the right one this time. The Jews will go back to the place where and when it all went wrong for them.
The Jews today know by reading the Torah that they have no forgiveness of sins without the sacrificial system of the Temple in Jerusalem. They will return to that system that was an integral part of their history. This time though God will intervene sovereignly to help them to make the right turn from that which cannot save to their Messiah who can and will save them.