Not trying to be mean but it seems you assume or are accusing me of outward keeping, when I do not believe anything I have said would provoke that, and nobody on this site has met me in real life. With that out of the way, I would like to state an emphatic yes! I have spoken it a number of times on this site, however most of my talk about the Sabbath is trying to show it is for "Gentiles" and Hebrews, because so many speak against it.
So if we look at that passage in Isaiah 58, we look at Matt 12, and a number of other verses the word shows us it is truly a day to do His will not our own. Now Judaism and ancient pharisees made it a day were one basically sits on their hands all day. Yah does not want this, I have been shown in the word and in my life, the Sabbath is for His will. While the Feast days are about the works of Messiah, and training tools for His will.
Sabbath is a re-set. A day in which nothing worldly matters. All the hustle and bustle of the week can wear one down, that is why many "cut loose" come week end time. Yah created us and knows EXACTLY how we operate. So He gave us day day of refreshment. Now the things I am about to mention are not the only things I believe one can do on Sabbath, but are a few things I personally find Sabbath worthy.
Studying the word, alone or in a group study. Praying to our Father. Helping the homeless, the infirm, or similar. Handing out tracts. Simply doing righteous deeds. Showing others you are willing to help them when they are in need, for no personal gain. Attending a teaching, study, worship service, etc. Anything that is truly the will or work of Yah or within His "gates."
Now there are also things that should not be done on the Sabbath, and hear me out before you assume anything please. Watching a sports event, while not a sin in itself, it is not the work or Yah; the time spent watching could have been spent read His word, in prayer, helping others, etc. We are not supposed to cook on Sabbath, while not a sin in itself, cooking can be done before hand, and that time can be better utilized, example: A group of 10 people are going to spend all day Sabbath in the word, but people need to eat, so lets say there are 2 choices, 1 - three of the people stop studying the word and cook for the other seven, which may be service to those seven others so they may focus on the word. Choice 2 - the food is prepared the day before, so all ten people may spend the entire day studying the word together, none have to refrain from growing in the word. Mowing the lawn is not a sin, however, if Yah says He wants us to serve food at the homeless shelter from sun up till sundown, mowing my own lawn would interfere with that. While mowing the lawn is not a sin, it would not be doing Yah's will, if He asked us to do something different at that time. I could give more examples, but I think my overall view has been shown. OK, one more, if Yahshua/Jesus were here in the flesh right now, and He asked us to go with Him while He preached to help hand out food while He preached, but I said, OK, but from 4-5 I want to play video games, and I will be there by 5:15.... I think that would be wrong, and if He was here in the flesh right now, I don't know how many would tell Him that, however I feel like when I do that on His day, I am essentially doing the same thing.