The kind of person on whom I look with favor is one with a poor and humble spirit, who trembles at my word.
For just as the new heavens and the new earth that I am making will continue in my presence,’ says ADONAI, ‘so will your descendants and your name continue. 23 ‘Every month on Rosh-Hodesh and every week on Shabbat, everyone living will come to worship in my presence,’ says ADONAI. 24 ‘As they leave, they will look on the corpses of the people who rebelled against me. For their worm will never die, and their fire will never be quenched; but they will be abhorrent to all humanity.’ [‘Every month on Rosh-Hodesh and every week on Shabbat, everyone living will come to worship in my presence,’ says ADONAI.
Isaiah 58:13 a future Shabbat
If you hold back your foot on Shabbat from pursuing your own interests on my holy day; if you call Shabbat a delight, ADONAI’s holy day, worth honoring; then honor it by not doing your usual things or pursuing your interests or speaking about them. 14 If you do, you will find delight in ADONAI – I will make you ride on the heights of the land and feed you with the heritage of your ancestor Ya’akov, for the mouth of ADONAI has spoken.
The below commentary if from: Remember the Sabbath Day by Richard Rives
So what can we definitely say about the Sabbath?
The Sabbath is to be a sign between God and his people so that they will know that he is the god that sanctifies them.
The fourth commandment has absolutely nothing to do with religious activity on any certain day. In fact, it is just the opposite, it is a day of rest, prescribed by God. We should worship God every day.
The Sabbath was established at the time of the creation of the world. It is not the Jewish Sabbath or the Christian Sabbath; it is God’s Sabbath.
The seventh day Sabbath was reconfirmed in the Ten Commandments, written in stone by the finger of God.
The penalty that was set for non observance is death.
Even after the crucifixion, the followers of Jesus observed the Sabbath. The very people who walked and talked with Jesus “rested the sabbath day according to the commandment”
No where in the Bible are we told that the Sabbath was changed to Sunday.
In Isaiah 66:22-23 we find that the Sabbath is not just a thing of the past and that in the new heavens and the new earth the sabbath will be recognized.
And in Revelation 14:12, again referring to future events, we are given a description of saints: “…they that keep the commandments of God, and have the faith of Jesus.”
Yes, Saints will remember the sabbath day to keep it holy for it is one of Gods commandments and the faith of Jesus establishes it.
“The Sabbath was made for man and not man for the sabbath.”