Another question is, are the other nine Commandments as flexible as you assert the Sabbath Commandment being if one is born again? ....further, if the Sabbath Commandment is not linked to our salvation are the other nine also dispensable?
When we all stand before God in the Judgment, we will be judged on whether we have kept or violated any or all of the Ten Commandments. Sin is the violation of the Ten Commandments. God hates sin, and He is not only a God of love, but He is a God of justice as well. Therefore if we have broken the law, we can expect justice.
What would think of a judge who lets a rapist go free without justice. On what basis does the judge sentence a rapist to a term in prison? Isn't it the law? The law says that rape is a crime, so a fellow who rapes three women and slit their throats would be sentenced to the electric chair would he not? What if we don't have laws? There would be chaos.
So God has His moral law, expressed in the Ten Commandments. He will judge every one of us according to His law, and because we have not kept the Commandments, we will be judged guilty, whether we be Jew or Gentile.
So, if you are a thieving, lying, blasphemous, adulterer at heart, and a sabbath breaker, as we all are, would you not be found guilty at the Judgment?
So, would you expect a God of justice to let you go free just because He is loving and compassionate? If He did, then the Ten Commandments would mean nothing, and that anything goes, in the same way that if a court judge lets a three time rapist and murder go free just because he is a loving and compassionate person in himself. Wouldn't that make the law of the land meaningless, and that anyone can do whatever they please, even going around raping women and children and then murdering them?