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6 And I also have given you cleanness of teeth in all your cities, and want of bread in all your places: yet have ye not returned unto me, saith the LORD.
In Genesis 18:7; 2 Samuel 12:4, this symbolizes earthly goodness. (Arcana Coelestia 2181)
58 This is the bread which came down out of heaven--not as our fathers ate the manna, and died. He who eats this bread will live forever."