He gave a system for men to administer his justice in the past,yes ...but with the installation of Christianity he gave himself the sole responsibility of meting out punishment and judgments. He took on that role himself.
God took that system away and replaced it with something better...then Muhammad came along 700 years later and re-introduced an old system administered by men again.
You have not shown that this system was ever abolished. Jesus never advocated such an idea. His disciples never advocated such an idea. The simple fact that God had given a system for justice (which again, is not solely what the Mosaic law is about) shows that God can and does give justice systems.
Finally, you are over simplifying Mosaic law and what the Quran teaches. Who are you to say that during the time of Muhammad, God felt that those individuals needed a divine justice system, just like the Jews had? Who are you to say that Muhammad was the one to reintroduce such a system, and that it was not God? That clearly shows a huge amount of bias. Finally, and the key point, you've never shown that the old system, that the Mosaic Laws were every abolished. Until you can show that to be true, any and all arguments you have are void.
You must first show that the Mosaic Law has been abolished before any logical defense can be made. Your whole argument rests on just that; the abolishment of the Mosaic Law.
yes, and the guidline was that the whole mosaic law hung on the principle of Love for God and love for neighbour... a person who loved God would seek to live by his standards and would not need to be forced to adhere to a written code of conduct
this is why God removed the mosaic law code... he was removing the 'obligation' to obey because he wants people to worship him from the heart. This is why he says he will establish a 'new nation' who hearts have his laws inscribed upon them....this new nation will be people who actually obey God because they 'want' to obey and not because they they will be punished if they dont.
And here is a major problem. Your lack of understanding as to why Jews follow God's law. It has nothing to do with being punished if they don't follow it. It has to do with loving God. They follow the law because God gave it to them. And it is that point that you completely missed. You need to understand the reason why Jews follow the law in order to criticize it.
The Laws are kept because the Jews love God. It is from their hearts, that it is kept. So there was no need to remove some "obligation" as there was no obligation. It was an act of love. God gave the commandments, and out of love, the Jews follow them. So your argument fails miserably since you did not recognize the purpose of the Law, or the reason that Jews follow it. Which is very clear when you describe it as an obligation, and that Jews had to follow it so they wouldn't be punished.
As for the New Nation, it is talking about Israel. When God speaks of creating a New Nation, he is referring to the Jews, which is clear from the context. More so, the Messiah must come before that, and really, there is no reason to believe that he has. Unless you can show why Jesus is the Messiah, then the point is void.
Since Jesus did not fulfill messianic prophecy (and you can't say that he is going to in the future, with his second coming, because even if that is true, it hasn't happened, and thus there is no reason to believe that to be true), and thus failed as the Messiah. That is why the Jews reject him, and rightfully so.
a deeper spiritual point to think about here is that the temple represented Gods presence. By God allowing it to be destroyed, he was showing that he no longer presided in the temple...this is why the priesthood came to its finish because he no longer accepted the mediation of that priesthood between himself and the people. A better mediation was now in place.
There is a huge problem with that idea. First, the Temple had been destroyed once before. Yet, God promised to have it rebuilt. So your scenario doesn't work as we know that even though God intended for the Temple to be there (as it was built for a second time, which God obviously allowed), it shows no reason to assume that he no longer had a use for it.
More so, it is widely believed that the Temple will be rebuilt again, when the Messiah comes. Actually, that is a must I believe. So God obviously has a need for the Temple.
Also, I don't really understand what you mean by better mediation. Because Jews could and still do, have access to God. The Temple was not the only place God was. You may want to read up on the priesthood and the Temple.
being freed from the law meant that God no longer required anyone to follow the prescriptions of justice and formalities that the priests administered.... so yes, freed from that minuscule part of the law but not from the standards and morals that the law set.
Justice and formalities that the priests administered? I don't think you understand what the Law is. There was much more to the law than I think you are assuming.