Ever heard of that guy named Jesus? Ever wonder why the Jews wanted him killed? Yeah, he pretty much broke every major rule of the Old Testament in their eyes. Broke the Sabbath regularly, called himself the Son of God, communed with dirty sinners, didn't wash before eating, forgave a woman caught in adultery etc etc. Then he went and told his Apostles to invite the dirty Gentiles into the family.

It's obvious Christians are not expected to follow the Law that they are to have no part in. Goodness, most of the New Testament is dedicated to explaining that the Law is dead.

That being said, Jesus raised some of the Old Law to a much higher standard, equating hate with murder etc.