On the subject of the Law of Moses, or the Sinaitic Covenant, I recommend
my article, "Christians and the Law of Moses," at
http://www.choicesforliving.com/spirit/part4/lawofmoses.htm

What laws now apply? What about the New Covenant? What about the Jewish
Sabbath?

Outstanding inputs from Messianic Jewish pastor and author Marvin Byers and
former Seventh-day Adventist pastor and fourth-generation Adventist, Pastor
Dale Ratzlaff.

Jim