This is a clip from a study I did back in 2013. I make no claims of being an expert in this, but it does seem to me that something is seriously wrong with our English translations. If so, could it be that Satan (through the Catholic Church) has sabotaged the Sabbatōn?
For more, see:
http://www.babylonrisingblog.com/keepSabbath.html
http://www.babylonrisingblog.com/sabbaton.html
http://www.bayithamashiyach.com/Scriptures.html
Video Source
And this is his commandment, That we should believe on the name of his Son Jesus Christ, and love one another, as he gave us commandment. (1 John 3:23)
Observing times, etc. = irrelevant complexity to me. (Gal 4.10) I'd rather have JESUS + LOVE.
An excellent book that tells the story about how Satan and religious organizations have sabotaged worshiping on the Sabbath and Christianizing Pegan worship and services: The Ultimate Rip-Off: Discover the Swindle of all Swindles by Bill Stringfellow. (Concerned Publications, Inc. 1987).