en_tn/gen/01/06.md

Let there be an expanse ... let it divide

These are commands. By commanding that the expanse should exist and that it divide the waters, God made it exist and divide the waters. (See: rc://en/ta/man/translate/figs-imperative)

expanse

large empty space. The Jewish people thought of this space as being shaped like the inside of dome or the inside of a bowl that is turned upside down.

between the waters

"in the water"