In Genesis 9:12, this signifies people who are perpetually being regenerated or created anew. (Arcana Coelestia 1041)

In Isaiah 13:20, this signifies what is eternal regarding the destruction of truth. (Arcana Coelestia 1029[14])

694. Just as heaven, deriving as it does from the Lord, constitutes through mutual love one human being and one soul so to speak, and consequently has one end in view, which is to preserve and save all men eternally, so conversely does hell, deriving as it does from the proprium, constitute through self-love and love of the world, that is, through hatred, one devil and one frame of mind (animus), and consequently has one end in view, which is to destroy and condemn all men eternally. That this is the nature of their endeavours I have perceived thousands and thousands of times. Unless therefore the Lord were preserving everybody in every fraction of a moment, man would perish.