On the Second Day

https://www.holyspiritspeaks.org/god-himself-the-unique-i/

“And God said, Let there be a firmament in the middle of the waters, and let it divide the waters from the waters. And God made the firmament, and divided the waters which were under the firmament from the waters which were above the firmament: and it was so” (Gen 1:6-7).