Abaddon is a figure from the Hebrew Bible and the New Testament, whose name signifies destruction or doom. In the Hebrew scriptures, the term often refers to a place of ruin or a bottomless pit frequently associated with Sheol, the realm of the dead. However, Christian tradition personifies this name as an angel of the abyss. In the Book of Revelation, this individual is identified as the king of a locust army, known in Greek as Apollyon or the Destroyer.