Arcana Coelestia #60
60. Verse 31 And God saw everything that He had made, and behold, it was very good. And there was evening, and there was morning, a sixth day.
This verse says 'very good', whereas previous verses merely said 'good', for now the things of faith make one with those of love. A marriage has accordingly taken place between spiritual and celestial things.
Nile, or river of Egypt
'The Nile' or 'river of Egypt' represents the sensory things subject to the intellectual mind and the ideas derived there. This is because they are the extreme parts of the spiritual things in the Lord's kingdom.
(References: Arcana Coelestia 5196)