Law can be grouped into moral law, ceremonial law, dietary law. Jesus fulfilled all the law. We are not saved or stay saved by keeping the law.
Instead we are born again a new creature in Christ. The result of that is we love God and others and our new nature is to live out the moral law driven by love not by religious requirement.
For all the law is fulfilled in one word, even in this; Thou shalt love thy neighbour as thyselfGal 5:14