In Isaiah 23:3, this signifies vastation of the knowledges of good and truth, because they were for the sake of self. (Arcana Coelestia 2967)

In Jeremiah 12:13, this signifies the falsities of low desires, and realization of the destitution of good and truth. (Apocalypse Explained 811[13], Arcana Coelestia 9144[9])