http://www.moshiach.com/e-book-noahide-how-to/the-7-laws-of-the-children-of-noah.html
...9. Although the Children of Noah are commanded only concerning the Seven Universal Commandments, they are permitted to observe any of the 613 Commandments of the Torah for the sake of receiving divine reward. The exceptions to this are:
a. Observing the Sabbath in the manner of the Jews (resting from the actions that were needed for the building of the Tabernacle during the Exodus from Egypt)
b. Observing the Jewish holy days in the manner of the Jews (resting in a similar manner to the Sabbath)...
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.