The Bible

Genesis 1:5

⁵ And God called the light Day, and the darkness he called Night. And the evening and the morning were the first Day.

The Bible

Jeremiah 31:35

³⁵ Thus saith the LORD, which giveth the sun for a light by day, and the ordinances of the moon and of the stars for a light by night, which divideth the sea when the waves thereof roar; The LORD of hosts is his name:

Commentary

Face of the deep

The face of the deep (Genesis 1:2) signifies the lust of the unregenerate man, and the falsities that originate from it.

(References: Arcana Coelestia 018, Genesis 1)