“By the seventh day God completed His work which He had done, and He rested on the seventh day from all His work which He had done. Then God blessed the seventh day and sanctified it, because in it He rested from all His work which God had created and made.” Genesis 2:2-3
Genesis chapter 2 begins, oddly enough, with the Sabbath. Considering the Sabbath is the completion, and resting from the work done, you would think it would be at the end of chapter 1. However, consider that the bible was not written the way we currently read it – it was written on scrolls, without divisions for chapters and verses. The chapters and verses we see in the present form of our English bibles was not added until many years later, when the Latin Vulgate was published in 1555 AD (though there were many different divisions before this.) We could also take this to mean that though the Sabbath is to be a time of rest for us, we can look at it as a beginning, not an end. Perhaps those who chose to split chapter 1 and 2 here had more of a view of heaven – death on earth, our final rest here, being not an end, but rather a new beginning with God in heaven.
I have read that some consider the Sabbath the pinnacle of creation, but I have to disagree. The Sabbath was not ‘created’ like other things were; it was ordained perhaps, declared, but not part of actual creation in a physical sense. In the account of creation of our physical realm, mankind is the pinnacle. It is written that we were made ‘a little lower than the angels’ (Psalm 8:5), of whose creation we do not know the time or specifics. When we consider things like the awe-inspiring pictures of far away galaxies that we see coming from telescopes, it is humbling to think that God saved the creation of mankind for last.
The Sabbath then, is a period of time (a specific day in this case) blessed by God, but not a ‘created thing’.