That's right, people. Forget that silly covenant that the Jews made with God (Deut 6:25). Just ignore the entire Old Testament, the law and the prophets, and listen to Chair. He and
his Jewish buddies are running their own game.
You are continuing the same game, interpreting the term "righteousness" in the Christian manner, and assuming that that is what it meant to the Israelites in the Old Testament times. If anybody is ignoring the whole bulk of the law and prophets, it is you.
Where in the law does it say "eat kosher so you can escape Adam's sin"? Where does it say "keep the law so you will get to heaven"?
Look at the section from Deuteronomy:
20 In the future, when your son asks you, "What is the meaning of the stipulations, decrees and laws the LORD our God has commanded you?" 21 tell him: "We were slaves of Pharaoh in Egypt, but the LORD brought us out of Egypt with a mighty hand. 22 Before our eyes the LORD sent miraculous signs and wonders—great and terrible—upon Egypt and Pharaoh and his whole household. 23 But he brought us out from there to bring us in and give us the land that he promised on oath to our forefathers. 24 The LORD commanded us to obey all these decrees and to fear the LORD our God, so that we might always prosper and be kept alive, as is the case today. 25 And if we are careful to obey all this law before the LORD our God, as he has commanded us, that will be our righteousness."
The stated goal of the commandments is :" that we might always prosper and be kept alive, as is the case today." Without the Christian interpretation of the word "righteousness" you have no case.