Arcana Coelestia #738
738. He is called 'a son of six hundred years' here because, as shown already, 'son' means intellectual truth. He is not however referred to as a son in verse 11 below because there the subject is his temptation as regards things of the will.
Arcana Coelestia #5336
5336. 'When he stood before Pharaoh king of Egypt' means the presence of the celestial of the spiritual in the natural. This is clear from the meaning of 'standing before someone' as the presence, and from the representation of 'Pharaoh king of Egypt' as a new state in the natural or a new natural man, dealt with in 5079, 5080, and so the natural which now had the celestial of the spiritual within it and which the celestial of the spiritual now made its own - which is also the meaning of the words that immediately follow, 'And Joseph came out from before Pharaoh'.