In addition to the 4th Commandment of Sabbath and keep it Holy is the Prophet Isaiah 66 v 23 saying :
And it shall come to pass that from one New Moon to another, and from one Sabbath to another, All flesh shall worship before Me says the Lord. (KJV)
orEvery month on Rosh-Hodesh and every week on Shabbat, everyone living will come to worship in my presence, says Adonai! (CJV) The New Moon is on every calender and Jewish Messianic Synagogues hold that as a worship day as commanded as should ALL other christian churches…if yours does not visit a synagogue on that day. It is a few hours of personal worship, prayer and scripture reading without a message from the Rabbi or Pastor.
If one cant be found ask your Pastor to add it to carriculum or start a home service for that day.
He said EVERYONE LIVING AND ALL FLESH…ALL saved Nations of people.
Do it and be Blessed.