Genesis 1 paraphrased is basically God created the universe and everything in it in 6 days. Genesis 2:1-3 God has finished with His work and rests. This established the principle of the Sabbath.
There is controversy around this as creationist don’t like the nice and tidy way that God created everything. It doesn’t go into enough detail for them for it to be believable. Generally speaking, they reject the idea and pursue science to gain their answers. I like science. To me it is man’s way to explain God. People will take it to the point where they try to replace God with it, but it doesn’t really conflict with what God said.
There is another controversy over whether the days that God worked in are literal or figurative. Did God really do everything in 144 hours? I understand their desire to hold to the Bible and insist it is accurate, but God doesn’t actually address what we consider as a way to track time until the fourth day. There was a Day and a Night since day one, but is that according to God’s time or Man’s? That is the question.
Psalms 90:4 – For a thousand years in your sight are but as yesterday when it is past, or as a watch in the night.
2 Peter 3:8 – But do not overlook this one fact, beloved, that with the Lord one day is as a thousand years, and a thousand years as one day.
Clearly scripture shows that there is a difference in perception of time between God and Man. As with any religion, there is always a desire to understand the workings of God. The problem is where we try and make God conform to our way of thinking. I believe that is the case with the literal 6 day interpretation on the creation of the world.
I was reading this the other day when the Holy Spirit challenged my thinking. God was deliberate to show Him working and creating and then resting, that He failed to mention what He did on day 8. But all work was completed on day 6, so what is left for God to do? The Sabbath principle is the day of rest. Stuff can still be done, but it is supposed to be a day devoted to the Lord. If there is no work to be done, why would He need another day? Look at the below passages:
Genesis 1:28 And God blessed them. And God said to them, “Be fruitful and multiply and fill the earth and subdue it and have dominion over the fish of the sea and over the birds of the heavens and over every living thing that moves on the earth.” 29 And God said, “Behold, I have given you every plant yielding seed that is on the face of all the earth, and every tree with seed in its fruit. You shall have them for food. 30 And to every beast of the earth and to every bird of the heavens and to everything that creeps on the earth, everything that has the breath of life, I have given every green plant for food.” And it was so. 31 And God saw everything that he had made, and behold, it was very good. And there was evening and there was morning, the sixth day.
Genesis 2:1 Thus the heavens and the earth were finished, and all the host of them. 2 And on the seventh day God finished his work that he had done, and he rested on the seventh day from all his work that he had done. 3 So God blessed the seventh day and made it holy, because on it God rested from all his work that he had done in creation.
Each of the first 6 days had a clear beginning and an end. Not so with the seventh day. God is still observing the Sabbath. That is why God says that Sabbath was created for man. Not just for man to rest, but it is God spending time with man. He hasn’t finished spending time with us, so the day has not concluded.