The sun in the Bible represents the Lord, with its heat representing His love and its light representing His wisdom. “Daytime,” then, represents a state in which we are turned toward the Lord, receiving His love and being enlightened by His truth. And “nighttime,” obviously, represents states in which we are turned away from the Lord, left cold and blind to the truth. The most common word used for it in the New Christian theology is “obscurity.” The darkness is not absolute, of course. The light of the moon represents the understanding we can have based on facts and our own intelligence. But while the moon reflects some of the sun's light, it offers almost no heat, so this kind of understanding is a cold one, without the warmth of love. And at its darkest and coldest, night represents a state of judgment. This happens when a person -- or a church -- becomes so mired in evil and falsity that there is no light or heat. The Lord can then step in, separate the good from the evil, consign the evil to hell and begin rebuilding based on the remnant that is still good. Drastic as that sounds, it is something that we all go through repeatedly in various aspects of our loves, so that we can be rid of what is evil and let the Lord rebuild us as angels.

22. Verse 5 And there was evening, and there was morning, the first day.

What 'evening' means, and what 'morning', is recognized from what is said above. 'Evening' means every prior state, because it is a state of shade, that is, of falsity and of absence of faith, while 'morning' is every subsequent state, because it is one of light, that is, of truth and of cognitions of faith. 'Evening' in general means all the things that are man's own, whereas 'morning' means all those that are the Lord's, as is said through David,

The Spirit of Jehovah has spoken within me, and His word is upon my tongue. The God of Israel has said, the Rock of Israel has spoken to me. He is like the morning light, when the sun is rising on a cloudless morning, shining bright, as when after rain tender grass [springs up] from the earth. 2 Samuel 23:4.

Because 'evening' is a time when there is no faith, and 'morning' when there is, the Lord's Coming into the world is called 'the morning', and the time at which He comes, since faith does not exist at that point, is called 'the evening', as in Daniel,

The Holy One said to me, Up to the evening when it is becoming morning, two thousand three hundred times. Daniel 8:13-14.

In the Word, 'morning' stands in a similar way for every coming of the Lord, and so is a term describing the new creation.