Arcana Coelestia #38
38. Verse 18 And to have dominion over the day and the night, and to make a distinction between the light and the darkness; and God saw that it was good.
'The day' is used to mean good, and 'the night' evil. Consequently goods are called 'the works of the day', whereas evils are called 'the works of the night'. 'The light' is used to mean truth, and 'the darkness' falsity, just as the Lord says,
Men preferred darkness rather than light; he who does the truth comes to the light. John 3:19-21.
Verse 19 And there was evening, and there was morning, a fourth day.
John 14:19-21
19
Yet a little while, and the world will see me no more; but you will see me. Because I live, you will live also.
20
In that day you will know that I am in my Father, and you in me, and I in you.
21
One who has my commandments, and keeps them, that person is one who loves me. One who loves me will be loved by my Father, and I will love him, and will reveal myself to him."