Arcana Coelestia #478
478. The reason he is called Adam is that the Hebrew word Adam means man. But the fact that Adam was never used as a proper name, only Man, is quite clear from the consideration that both here and earlier he is spoken of in the plural and not in the singular, and that the term refers to both man and woman. The two together are called Man. Anyone may see from these words that both are included, for it is said, 'He called their name Man on the day in which they were created', and similarly in 1:26, 28, 'Let Us make man in Our image, and they will have dominion over the fish of the sea. This shows also that the subject is not about someone who, when created, was the first human being of all, but about the Most Ancient Church.
Deuteronomy 18:1-4
1
The priests the Levites, [even] all the tribe of Levi, shall have no portion nor inheritance with Israel: they shall eat the offerings of Yahweh made by fire, and his inheritance.
2
They shall have no inheritance among their brothers: Yahweh is their inheritance, as he has spoken to them.
3
This shall be the priests' due from the people, from those who offer a sacrifice, whether it be ox or sheep, that they shall give to the priest the shoulder, and the two cheeks, and the maw.
4
The first fruits of your grain, of your new wine, and of your oil, and the first of the fleece of your sheep, you shall give him.
