Eight hundred
In 2 Samuel 23:8, this signifies temptations and a new state returning to the worship of Jehovah. (Apocalypse Explained 817[7])
In Genesis 5:4, this signifies the state of the Most Ancient Church at that time, in general and in particular. (Arcana Coelestia 488)
2 Samuel 23:8
8
These are the names of the mighty men whom David had: Josheb Basshebeth a Tahchemonite, chief of the captains; the same was Adino the Eznite, against eight hundred slain at one time.