In Genesis 14:17, this signifies the liberation and vindication of the apparent good and truth represented by Abram here. (Arcana Coelestia 1722)

In Zechariah 11:4, this signifies people who are in good but led astray by falsities of doctrine. (Apocalypse Explained 315[11])

In Isaiah 30:25, this signifies the Last Judgment when the wicked perish spiritually. (Apocalypse Explained 315[15])

'Slaughter' signifies perdition and damnation. 'Slaughter' and 'a storm of slaughter,' signifies evils which destroy the goods of the church. 'The day of great slaughter' stands for the last judgment.

(Referencat: Apocalypse Explained 315)