Arcana Coelestia # 5590
5590. 'We will not go down' means that it cannot be acquired. This is clear from what has been stated just above in 5588.
Arcana Coelestia # 5588
5588. 'We will go down and buy food for you' means that in this case the good of truth will be acquired. This is clear from the meaning of 'buying' as acquiring and making one's own; and from the meaning of 'food' as the good of truth, both of which meanings are dealt with above in 5582.