Abaddon
The Hebrew term "Abaddon" (Hebrew: אֲבַדּוֹן‎ Avaddon, meaning "doom"), and its Greek equivalent "Apollyon" (Greek: Ἀπολλύων, Apollýōn) appear in the Bible as both a place of destruction and an angel of the abyss. In the Hebrew Bible, abaddon is used with reference to a bottomless pit, often appearing alongside the place שְׁאוֹל (Sheol), meaning the realm of the dead.
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