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 #10231
10231. 'And to the children of Israel it shall be as a remembrance before Jehovah' means thus the preservation of the Church and of all things the Church has by the Lord. This is clear from the representation of 'the children of Israel' as the Church, dealt with in the places referred to in 9340; from the meaning of 'a remembrance', when done by Jehovah, as preservation, dealt with in 9849; and from the meaning of 'before Jehovah' as by or from the Lord, dealt with in 10146.