Since all children of Isra’el came from Noah(included the Egyptians who were grafted in by circumcision & abiding by the Torah), the dividing of the nation IMHO is exactly opposite of what Torah teaches. . . The Torah teaches that YHVH’s children are one nation with one set of instructions which is Torah.
Observing the Sabbath in the manner of the Jews, Observing the Jewish holy days in the manner of the Jews
What do you mean by the manner of Jews? Do you consider the oral laws of Sabbath restriction to be of divine origin? I am only speaking of restrictions not instructions for Temple & worship service. When does one cross the line between instruction & restriction thereby adding additional yokes to our lives which YHVH never intended and in fact, HE gave a commandment against adding yokes/burdens.
http://www.dovidgottlieb.com/Rabbi_Gottlieb_Tapes.html
The Oral Law part 1
The Oral Law part 2
The Oral Law part 3
The Oral Law part 4
The Oral Law part 5