Arcana Coelestia #21
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.
Arcana Coelestia #3005
3005. The fact that JESUS in the internal sense is Divine Good and CHRIST Divine Truth may be seen from many places in the Word. The reason why Jesus is Divine Good is that it means Safety, Salvation, and Saviour. And as it means these it means Divine Good, for it is from Divine Good, which is the manifestation of the Lord's love and mercy, and so through the reception of that Good, that all salvation springs. The reason why Christ is Divine Truth is that it means Messiah, Anointed, and King. That Messiah, Anointed, or King is Divine Truth will be clear from what follows.