In the book of Ezra we see that bringing the proper sacrifices as taught in the Law of Moses was the first priority. Even before there was a building, people put up an altar and brought the sacrifices. Only later did they start to build the walls of Jerusalem and the buildings of the Temple.
The reason this is hard to do nowadays is the lack of a red cow. That lack means that one can not be made pure from the kind of uncleanliness that results by touching a dead body.
But this is simply remedied by genetic engineering. At that point one who has touched a dead body would have to be sprinkled on by the ashes of the red cow and go into a natural body of water.
[The issue with having touched a dead body s that one can not go into the Temple nor eat sacrifices. So the red cow is a requirement before anything can be done.]
The calendar also that is in use today would have to be scraped. It was invented by Meton in Athens and is not a Torah idea. Rather the Torah has the new moon being in fact on the day of the new moon--the conjunction.
In terms of the actual laws the best book to learn is the ערוך השלחן which was written by a very great sage. It is in fact one of the best books written by the אחרונים. The other great books of אחרונים are the Avi Ezri of Rav Shac and the Pnei Yehoshua.
[Different groups have claimed that sacrifices are no longer needed but I think it is clear from internal evidence in the Old Testament itself that the obligation is even today.]
[In terms of who is a priest who can offer sacrifices, I think Yemenite people have been careful to guard that information accurately.]
[Most Christians believe that sacrifices are not necessary however that seems based on misunderstandings. The basic way I understand the actual statements of Jesus is that he had no intention to nullify the Law of Moses. To me this seems obvious. However it is customary in Christian circles to claim the opposite. I even tried once or twice to argue this point and I not get very far.]
The reason this is hard to do nowadays is the lack of a red cow. That lack means that one can not be made pure from the kind of uncleanliness that results by touching a dead body.
But this is simply remedied by genetic engineering. At that point one who has touched a dead body would have to be sprinkled on by the ashes of the red cow and go into a natural body of water.
[The issue with having touched a dead body s that one can not go into the Temple nor eat sacrifices. So the red cow is a requirement before anything can be done.]
The calendar also that is in use today would have to be scraped. It was invented by Meton in Athens and is not a Torah idea. Rather the Torah has the new moon being in fact on the day of the new moon--the conjunction.
In terms of the actual laws the best book to learn is the ערוך השלחן which was written by a very great sage. It is in fact one of the best books written by the אחרונים. The other great books of אחרונים are the Avi Ezri of Rav Shac and the Pnei Yehoshua.
[Different groups have claimed that sacrifices are no longer needed but I think it is clear from internal evidence in the Old Testament itself that the obligation is even today.]
[In terms of who is a priest who can offer sacrifices, I think Yemenite people have been careful to guard that information accurately.]
[Most Christians believe that sacrifices are not necessary however that seems based on misunderstandings. The basic way I understand the actual statements of Jesus is that he had no intention to nullify the Law of Moses. To me this seems obvious. However it is customary in Christian circles to claim the opposite. I even tried once or twice to argue this point and I not get very far.]
