The Bible

Genesis 1:6

⁶ And God said, Let there be a firmament in the midst of the waters, and let it divide the waters from the waters.

The Bible

Genesis 1:9

⁹ And God said, Let the waters under the heaven be gathered together unto one place, and let the dry land appear: and it was so.

Commentary

Spreading themselves

'Spreading themselves on the earth,' as in Genesis 8:17, signifies the internal self operating on the external.

(References: Arcana Coelestia 913)