This view is known as Sabbatarianism; Michael Horton also makes a good case for it, though I think he might opine that to say that Christians are no longer obligated to the 10 Commandments is a little excessive. Rather, he would say that we have evidence that we are still to keep them all except for the Sabbath-keeping as it was done in the OT, since Christ has given us our true Sabbath rest.

Stand Fast, Craigellachie!