Brimstone and salt
In Deuteronomy 29:33, this signifies the vastation of good and truth, for these destroy the earth and its produce as lusts destroy goods and falsities destroy truths. (Arcana Coelestia 1666)
Arcana Coelestia # 5419
5419. 'And Joseph's brothers came' means the general truths known to the Church which were without any intermediary. This is clear from the meaning of 'Joseph's brothers' as general truths known to the Church, dealt with above in 5409. They lacked any intermediary because Benjamin who was the intermediary was not with them. As regards 'Benjamin' being that intermediary, see above in 5411, 5413.