God didn't say that .. got everything all wrong friend .. even the Bible don't say that.. The creation story in the Bible does not have God creating all things .. aka - the Universe - multiverse -- and everything else
Sorry Brother SBL -- but I tell you true .. its back to Sunday schoool for you because, the Bible has GOD .. creating the Earth and the Sun .. a few planets in our solar system .. the word Heavens is taken as "Sky" the ancient texts talk about people coming from the Sky ... not the entire Universe.. but regardless .. what ever it was that God Created .. The God of Genesis 1 does not say the earth was created 6000 years ago.
The Sun doesn't show up until the fourth Day .. How long is a Day .. when there is no sun ? .. could be a really long time billions of years because there is no 24 hour Day until there is a Sun .. as we read in scripture
14 And God said, “Let there be lights in the vault of the sky to separate the day from the night, and let them serve as signs to mark sacred times, and days and years, 15 and let them be lights in the vault of the sky to give light on the earth.” And it was so. 16 God made two great lights—the greater light to govern the day and the lesser light to govern the night. He also made the stars. 17 God set them in the vault of the sky to give light on the earth, 18 to govern the day and the night, and to separate light from darkness. And God saw that it was good. 19 And there was evening, and there was morning—the fourth day.
-- So you see there is nothing to govern the day and the night prior the fourth day .. the fourth day was the first sunset and sunrise ... marking our 24 hour day. Claiming the first 3 days were also 24 hours is an assumption based on nothing .. God didn't say nor imply this .. and thus your 6000 year claim is not Biblical ..
You can perhaps claim that the line of humans from Adam to today is 6000 years old from the Bible .. but thats about it .. who knows when the Gods came down and decided to start modern Humans .. Ancient Alien Theorists suggest all kinds of timelines .. most being within the last 500,000 years though .. some much earlier say within 12,000 years around the time when Gobekli Tepe was being built .. the time when the visitors from the Heavens came .. as told to us in Genesis 6 When human beings began to increase in number on the earth and daughters were born to them, 2 the sons of God saw that the daughters of humans were beautiful, and they married any of them they chose.
So this is presumably shortly after the aliens that came down from the sky created the humans -- wouldn't think the time to increase in number would be tens of thousands of years .. how many humans did these Sky People want after all ?
at any rate .. at some point these sky people- who had created humans to do laborious tasks they didn't want to do like mining .. created as a genetic hybrid of sorts between them and some primative human .. likely Neanderthal .. hence why humans have Neanderthal genes .. and in fact the more Neanderthal you have the more healthy you are likely to be .. fun fact.
Anyway .. at some point these hybrids were attractive to the to these Sky people .. so they took earthly woman as wives .. the sons of daughers of whome were the heros of the stories of old 4 when the sons of God went to the daughters of humans and had children by them. They were the heroes of old, men of renown.
So there you go friend
Or you do not understand the passage.
Scientists have looked everywhere. They have used amazing telescopes, even from space, and have peered into the far recesses of the universe. They have probed into matter and living things at the smallest of scales. They have built large particle colliders to smash particles together with enormous energies and analyzed the results. Mankind has been to the moon, landed probes on Mars, sent probes past all the planets, had close ups of comets, asteroids, and meteors. They have searched the very depths of the oceans, been to the mountaintops, drilled into the earth, been to Antarctica, searched deserts, rain forests, and drilled into glaciers. They have studied the sun, moon, earth, the planets, asteroids, comets, stars, galaxies, pulsars, quasars, star clusters, nova, supernova, neutron stars, dwarf stars, and black holes. They have analyzed proteins, enzymes, organs, and DNA from countless creatures. They have dug up many millions of fossils. They have searched for signs of aliens. They have analyzed tree rings, varves, ice cores, sediments, studied all the radioactive isotopes. They have very many equations, even used computers, and now will try AI.
And for all that, the only thing they have proved is that there is nothing older than 6000 years old without an assumption. On the contrary, they have proved that God Almighty exists, that God created all things about 6000 years ago in 6 days, and that the Bible is true.