The Bible

Genesis 1:20

²⁰ And God said, Let the waters bring forth abundantly the moving creature that hath life, and fowl that may fly above the earth in the open firmament of heaven.

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 104:20

²⁰ Thou makest darkness, and it is night: wherein all the beasts of the forest do creep forth.