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.

Commentary

Great lights

Great lights, as in luminaries, signify love and faith, and are called in Genesis 1:14-17 the sun, moon, and stars.

(References: Arcana Coelestia 31 [1-3])

The Bible

Psalms 33:6

⁶ By the word of the LORD were the heavens made; and all the host of them by the breath of his mouth.