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3 And the Lord said, My spirit will not be in man for ever, for he is only flesh; so the days of his life will be a hundred and twenty years.
To give food, as in Genesis 41:48, signifies to store up.
(Referencat: Arcana Coelestia 5342)
48 He gathered up all the food of the seven years which were in the land of Egypt, and laid up the food in the cities: the food of the field, which was around every city, he laid up in the same.