Thanks for the clarification. I knew about the high holy day but I have not heard the term “double sabbath”. Is this of your making or is it common usage at your church?
My church doesn’t define my theology. In this case, the coincidence is a double(d) Sabbath, and they both occur on the same day. One is a Fesitval Sabbath (day) and the other is the weekly seventh-day Sabbath. I don’t know how to make it clearer. And I don’t know how “church” enters into this.