Ever since there has been more information about the people scripture first used to explain the principles of God, there have been more people who use the seventh day of the week to celebrate Sabbath on. Before such as the deep sea scrolls were found, people had no idea that the word Sunday meant day of the Sun, not the day first set aside for God. Nimrod, the grandson of Noah who started making the sun a God was only a strong man mentioned in the bible until other writings were found. There were very few people who knew anything about the beginnings of our organized church and the history of how all the church decided to make the first day of the week the Sabbath.
When this was made common knowledge, many people wanted to go back to the original day God set up for Sabbath and they did. Even in the first days after Christ, scripture had to scold people who used this to stop love between people. We have scripture saying not to do this, but even that is read as scripture saying one day is the only right way and anyone choosing different from the other must not be loved because of it.
Now, in our churches using denial of scripture as the scripture they follow, they say anyone who does not deny a special day is not to be loved. They point judging fingers at Sabbath keepers saying they are trying to do that only to be saved, and so keeping Sabbath insures God won't save them.
So all people who are quietly going ahead with loving the Lord and respecting what God says, please don't think of the people who are throwing stones at you for doing this, send the Lord's blessing to them instead, ignore their barbs and stones and glory in the love of the Lord, instead.
Bless you all and bless this day.