I believe that the english translation of Genesis completely covers up it's original message and meaning.
Look up a hebrew interlinear and look at the direct hebrew to english word translation to understand how I have come to the conclusion I'm about to mention.
A few hidden things lost in english translation.
Reading Genesis the way I mentioned, you'll also see that as each phase of creation happens or after God said to let something happen, the phrase, "And he is becoming" follows. When he spoke to Moses he said his name is, "I shall become what I shall become". So in Genesis when it says, "And he is becoming atmosphere, and he is becoming morning, then he says to the Earth, "SHE" shall produce seed of HIM, AND HE is becoming so. This is describing how he started life, he had the female Earth produce seed of him then he became the seed, by transferring his life force into the seed to jump start it. All life we see comes from life, there has never been shown life to come from dead matter. So God 'becoming' transferring his life into what he made, is how it started.
To your question, a major thing lost in the English translation.....
It's much easier to see a double meaning in the hebrew interlinear about the creation. We know day and night as determined by the sun and moon, and light as from the sun. How was there morning, evening, nights, etc BEFORE sun and moon made? If you read in hebrew interlinear, take light to mean good and dark to mean evil. Before any laws, before KNOWLEDGE of good and evil, before anything it was chaos. If you read Genesis in another light, you'll see it's God creating order out of chaos and doing a lot of SEPERATION and DIVIDING AND creating or determing good and evil.
Now this dividing and separating comes down to individual entities. Possibly the reason that Satan has 1/3 of Angels is that originally Father divided into 2 or created 2 under him, one that was light and 1 that was darkness and each of them had 1/3 of angels. Just a possibility.
But in Genesis it says that the sun was made and the moon to SHOW which was ruling (light or darkness). Not to make light and darkness but to show, or a sign, of what is ruling.
THE BIG PLAN
Now lets say God's plan is to have GOOD life live eternally but also to be fair in who is the good life. He doesn't want evil to live eternally. He these 2 forces that were made are opposers or satans to each other. Satan means opposer. He knows that the knowledge of good and evil is needed or good to know so his creation will know not to do evil and what is good, etc. He also knows that the opposer MUST go against him. So he tells adam not to eat of tree of knowledge of good and evil. When the serpent asks if there was anything they were told NOT to do, he had to oppose and so he enticed them to eat of the tree of knowledge of good and evil. God's plan was for after knowing good and evil, and after having good and evil divided into individuals, each person has the equal ability to be good or evil, to let their selves sort out and those that are good he would save or have seperated from the evil. And after this point, the good are the ones who get life. The evil may just be seperated or no life, unsure on that.