The sky argument is a good argument for denying the reality of the creation story in the Bible. But again, God is greater than His creation. Genesis 1.7 says, “So God made the expanse and separated the water under the expanse from the water above it.” The firmament wasn’t solid. It was liquid. Creationists have studied this relentlessly to theorize what this looked like. Many believe that the layer of gasses that is the ozone layer was able to create a vapor barrier that kept the water from falling from the sky. The water then protected the earth from all of the harmful forces of the outer universe.

Aside from all that theorizing, it is clear that God made changes to the laws of life and physics after the fall, so who are we to say that what is true of physics now must line up with what was true then. We can’t put God in a box like that. He already has us in His box.

That isn’t what 2 Peter 3:8 is saying. What Peter is saying that it is as difficult for God to **wait** for a thousand years as it is for us to wait a single day. It is a contrast of patience, not an assertion that God gets confused when he says a day and night passed and a thousand years passed.

But the reason that Gen 1 is so unbelievable is that it describes the sky as a solid structure, with waters above it, and stars embedded in it. We now have telescopes and jets and stuff and know it simply isn’t anything like that.