I am intrigued by the fact that God blesses the seventh day (Ge 2:3), because it doesn’t actually exist: the seventh day is an abstract concept, like the number 7 — a concept describing a certain pattern or collection.
It isn’t that abstractions aren’t real, perhaps in some sense they’re more real, more permanent than what they represent. And the fact that God blesses this abstract concept of the seventh day, and how He actually does it, fascinates me.
The first sabbath day, the seventh day of time, is unique since it’s the very first day in which God doesn’t create something new and amazing; He rests, or ceases from creating, not because He’s tired, but because He’s finished: His work is complete, and it’s very good. (Ge 1:31) This first sabbath is indeed special.
To commemorate the 7th day, to help us remember the day God rested (Ex 20:11), God sets apart every 7th day, sanctifies each one until the end of time, making them distinct and different. But how does He actually do this?
You see, the very next day, the 8th day of existence, is just like the 7th day in every respect; from the 6th day on God doesn’t make the days materially different from each other — no special cosmic event marks any particular day. It’s only in the conscious mind where these sabbath days can possibly be distinguished, so that’s where God must sanctify them. We aren’t told explicitly how God does this, but there’s a clue in why He does it.
Christ, as Lord of Sabbath (Mk 2:28), reveals that sabbath is made for Man (27): God designs sabbath for the welfare of Mankind. This includes Adam and Eve, and every one born since.
However, if Adam doesn’t start keeping track of which day it is, starting on the 7th day, counting how many days have elapsed since the first sabbath, he won’t know when the next sabbath day is, or any sabbath after that. The fact God makes the sabbath for Man implies God tells Adam about the first sabbath and commands Adam to start keeping sabbath, to rest from his work every 7th day. Adam must understand that he’s to start counting the days and keeping track of them, else the sabbath will be lost. This he evidently does.
Man begins to defy God on every level imaginable (Ge 6:5), yet by the time Noah boards the ark, he not only knows what day of the year it is, he records exactly which day it is (Ge 7:11), and exactly what day the earth is completely dry. (Ge 8:13-14) Noah’s concern with time, keeping track of what day it is and telling us about it, indicates (to me, at least) that he’s stewarding sabbath, keeping it alive for us, along with the animals.
And by the time Israel’s being delivered from bondage hundreds of years after Noah, God doesn’t have to explain to Moses what day of the week sabbath falls on; He just tells Moses to remember sabbath, as if Moses already knows what day this is. (Ex 20:8) Evidently, Man’s unwittingly been keeping track of sabbath for God ever since He sanctified it, observing a 7-day week as a pattern of organizing life, even though, for the most part, he hasn’t been observing sabbath.
God does according to His will in Heaven and in Earth; no one can thwart His purposes. (Da 4:35) As He’s built so much of nature on mathematical patterns, He has imbedded the 7-day concept into the very fabric of civilization.