Fellowship and Worship in the New Earth - Isaiah 66 verses 22-23 KJV

22 For as the new heavens and the new earth, which I will make, shall remain before me, saith the Lord, so shall your seed and your name remain.

23 And it shall come to pass, that from one new moon to another, and from one sabbath to another, shall all flesh come to worship before me, saith the Lord.

P.S. I say that this reading is from the King James Bible, yet instead of reading "saith" I write and read "says". I ask for oversight from those who expect a literal reading.

The Audio reading in this upload is borrowed from "REVELATION 14:7 - Worship Him that made - A Bible Study" https://www.youtube.com/watch?v=CQOYODivZIE&t=309s

Some are perplexed with verse 23, trying to place it in history; because they want to avoid God's Sabbath rest? Others cry out, "so you mean we are to keep New Moons now?"
Let us be clear, the New Moons belonged to the ceremonial law that were hand-written by Moses and placed beside the Ark, not inside. They were nailed to the cross.
The Sabbath was written by God's own finger and was placed inside the Ark of the Covenant.
Should the Lord wish to re-introduce New Moon gatherings in the New Earth then I will remember that "God said, Let there be lights in the firmament of the heaven to divide the day from the night; and let them be for signs, and for seasons, and for days, and years:" Genesis 1:14.
As I underline in the upload, Sabbath means every seven days - weekly. New Moon means every month. The book of the prophet Isaiah was so respected by Christians that it was nicknamed "the Fifth Gospel". Anyway, we'll soon be studying parts of Isaiah for 13 weeks - I'm looking forward to it.

CREDITS
1) Accompanying Music: “Saving the World” by Aaron Kenny from YouTube's Audio Library..
2) Purple clouds: Video by Felix Mittermeier from Pexels
3) Reading Isaiah: Video by Tima Miroshnichenko from Pexels
4) Red sky: Video by Cinema Professionals
5) Sun going down: pexels.com/video/sunset-855623/