'The son of a cow' signifies the celestial natural level and natural exterior good.

(Izinkomba: Arcana Coelestia 2184 [1-7], 4244)

9270. 'For you were sojourners in the land of Egypt' means that they were protected from falsities and evils when they were molested by those from hell. This is clear from what has been shown in 9197, where the same words occur.