Arcana Coelestia # 403
403. From these quotations it is clear what 'a city' means. But because everything is put together as history, what else can people who are confined to the sense of the letter see than the idea that Cain built a city and called it Enoch? Yet even they from the sense of the letter must suppose that the earth was already populated, notwithstanding what is said about Cain being Adam' s firstborn. The historical sequence of events implies this. But as stated already, it was the custom among the most ancient people to convert all things into representative types and then arrange them as history. And to them this was something supremely delightful. When they did this everything they saw was seemingly alive.
Numbers 18:15-18
15
Everything that opens the womb, of all flesh which they offer to Yahweh, both of man and animal shall be yours: nevertheless you shall surely redeem the firstborn of man, and you shall redeem the firstborn of unclean animals.
16
You shall redeem those who are to be redeemed of them from a month old, according to your estimation, for five shekels of money, after the shekel of the sanctuary (the same is twenty gerahs).
17
"But you shall not redeem the firstborn of a cow, or the firstborn of a sheep, or the firstborn of a goat. They are holy. You shall sprinkle their blood on the altar, and shall burn their fat for an offering made by fire, for a pleasant aroma to Yahweh.
18
Their flesh shall be yours, as the wave offering breast and as the right thigh, it shall be yours.