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 # 6848
6848. 'And Moses hid his face' means that interior things were protected. This is clear from the meaning of 'face' as interior things, dealt with in 1999, 2434, 3527, 4066, 4796, 4797, 5102. The fact that 'hiding' means protecting follows from the train of thought in the internal sense, for it says that 'he hid his face, for he was afraid to look at God', meaning for fear that internal things should suffer harm from the presence of the Divine itself. The implications of this will be stated in what follows immediately below.