In Genesis it does not say when He made the Sun, Moon or stars. We agree, I presume, that the Sun and Moon were made to be those two lights. The stars were already to be lights.
It is assumed that when God says He is about to do something it is on the day He is about to do it.
"And God said, Let us make man in our image, after our likeness.... And the evening and the morning were the sixth day."
That you agree with, but then you change your mind about:
"And God said, Let there be lights in the firmament of the heaven to divide the day from the night; and let them be for signs.... And the evening and the morning were the fourth day."
In the first example, I did not even start at the beginning of the 6th day. The beginning included all the other living creatures other than humans, as they were created first.
In the lights of the sky, the moon is the only light that can be seen both at night and during the day conditions permitting. The moon does not divide nor define neither the day nor the night, even though that is the perception humans place on the dichotomy relationship of the sun and moon.
The only defining light during the day is the sun. The only defining lights at night are the stars. So please explain how the stars are not the lights God created to seperate the night from the day on the 4th day?
Yes, even the verses declare 2 great lights. Which humans then deny that the moon is even a light at all. Humans already contradict God's Word be declaring the moon is not a literal light as a light source. Yet you state the stars are not the lights at night as their own light source created on the 4th day.
I would be so bold to say that God's Word over and over relates these lights as the angels, and even the sun and moon are just two angels doing the job they were created to do. Humans have moved away from God's Word and have created a virtual use of the moon to something other than God described in Genesis 1. Even in Revelation 19:17, John sees the angel standing in the sun.
"And I saw an angel standing in the sun; and he cried with a loud voice, saying to all the fowls that fly in the midst of heaven, Come and gather yourselves together unto the supper of the great God;"
Now, one can argue that is just symbolism or a figure of speech. Or John was talking about the angel who has been shining as the sun, and we get to hear the sun actually talk. Not sure why a star cannot be sent to the earth and appear as a human to be a messenger of God? Other than human science teaches us human imagination contrary to God's Word.
Even at the birth of Jesus, the shepherds watched in the night sky, the stars appearing as humans and singing to them.
The point remains that the term lights (plural) on the fourth day is not limited to the human notion of a single light, and something God placed to reflect that single light. The 4th day was the creation of all the lights in the firmament. And those lights are the angels, as "star" and "angel" have been terms used interchangeably throughout the entire Bible for those created beings on the 4th day.
And the "sons of God" / "Adamkind" are the beings created on the 6th day.
God leaves nothing to human imagination, so we do not have to come up with our own ideas to explain things that clearly do not need some extra biblical explanation. Which covers all mythology and the majority of western science we teach ourselves on a daily basis. Obviously, that goes against modern day thought processes. We are the product of our society.