Arcana Coelestia #5655
5655. 'We certainly came down at the beginning to buy food' means a mind set on acquiring good for truths. This is clear from the meaning of 'coming down' as a mind set on something, that is, an intention; for a person who goes down or betakes himself to any place does so from a set purpose, the purpose being in this case to acquire good for truths, meant by 'buying food'. For 'buying' means acquiring and making one's own, 5374, 5397, 5406, 5414, 5426, while 'food' means the good of truth, 5340, 5342, in this case good for truths which are represented by 'the sons of Jacob' who spoke these words regarding themselves.
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.