'Wilderness' signifies something with little life in it, as described in the internal sense in Luke 1:80 'Wilderness' signifies somewhere there is no good because there is no truth. 'Wilderness,' as in Jeremiah 23:10, signifies the Word when it is adulterated.

(Odkazy: Arcana Coelestia 1927)

8418. 'And gather the thing of a day in its day' means continually, in proportion to need. This is clear from the meaning of 'gathering' as receiving, for when 'raining' means flowing in - that is to say, good from the Divine flowing in - 'gathering' means receiving, because the one activity goes with the other; from the meaning of 'the thing' as the object to which it refers, in this instance the bread or manna from heaven; and from the meaning of 'a day in its day' as continually, in proportion to need. Continually is meant because they received the manna daily (for the meaning of 'daily' is continually, see 2838); and in proportion to need is meant because they were to gather as much each day as they were going to need and no more, which for each person was an omen