21. Verses 4-5 And God saw that the light was good; and God made a distinction between the light and the darkness. And God called the light Day, and the darkness He called Night.

The light is called good, because it comes from the Lord, who is good itself. 'The darkness' is those things which were there prior to the person's new conception and birth. They were seen as light, because evil was seen as good, and falsity as truth. But in reality they are darkness and things proper to that person which are lingering on. All things that are the Lord's, being things of light, are compared to the day, and all that are man's own, being those of thick darkness, are compared to the night, as is done many times in the Word.

In Exodus 24:10 and Lamentations 4:7, the body of heaven here signifies truth in its whole complex. (Arcana Coelestia 9408, Apocalypse Explained 364[5])

In Matthew 6:25 and Luke 24:23, this signifies the good of love from the will. (Apocalypse Explained 759[16])

In Luke 17:37, this signifies the area of the spiritual world that includes everybody–both good and evil. The eagles or vultures signify people who are in truths or falsities, and so truly intelligent or falsely so. (Apocalypse Explained 281[9])