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.
Arcana Coelestia #5414
5414. 'And the sons of Israel came to buy in the midst of others who came' means the wish to acquire spiritual truths, like all other truths, through factual knowledge. This is clear from the meaning of 'the sons of Israel' as spiritual truths (for 'sons' are truths, see above in 5403, and 'Israel' is the celestial-spiritual man coming out of the natural, 4286, 4570, 4598, so that 'the sons of Israel' are spiritual truths within the natural); from the meaning of 'buying' as being acquired; and from the meaning of 'in the midst of others who came' as like all other truths, that is to say, ones acquired through factual knowledge.