Simply follow this train of thought:
Mythologically speaking, the Great God Pan (Greeks) is Cernunnos (Celtics), is Lord Pashupati (Vedic Civilization), is Lord Shiva (Hinduism), all deeply connected through the symbolism surrounding the LHC over at CERN (plenty written about that everywhere already), and CERN-unnos, Shiva, are directly connected to Abaddon/Apollyon through the location of the LHC itself, where an ancient temple devoted to his worship used to be. In Judeo-Christianity, Abaddon/Apollyon is not only the "angel" of the Abyss/bottomless pit, but also the key, the guardian and the bottomless pit itself; in other words, he is what Lovecraft attempted to describe as Yog-Sothoth, eternity given form, the key, the guardian and the "gate" between worlds as one, where the spheres meet, always on the verge of unleashing cosmic horrors upon humanity when the end comes.
In the Book of Revelations, it is clearly implied that Abaddon is, by far, the most powerful being in all of creation, moreso than the archangel Michael and Jesus Christ. Where? Chapter 20, verses 1-3, the angel of the Abyss intervenes to lock up Satan for a thousand years. When both the archangel Michael and Jesus Christ want to subdue Satan, they have to go to war with all of their followers, the biggest wars both Heaven and Earth have ever seen. Not Abaddon. He simply takes Satan, effortlessly, without struggle, chains him up and casts him down into the Abyss; Abaddon is, by definition, all-powerful. Not to mention that according to certain Apocrypha (especially "The Enthronement of Abbaton" by pseudo-Timothy of Alexandria), the veneration of Abaddon alone ensures salvation in the afterlife, for he alone is feared by both angels and demons alike.
You have to ask yourself: Who is more powerful than Michael, the Son of God and Satan combined? Who is "The Eternal" (Yahweh can literally be translated as "past, present, future as one", the same as Yog-Sothoth)? Who can offer both spiritual salvation and apocalyptic annihilation at will, without Jesus being involved, since he's above Jesus in power?
Well, as we established way at the beginning, Abaddon is merely another, more subtle name for the Great God Pan. Jesus is man/good/light personnified, Satan is goat/evil/darkness. Pan is both man and goat, good and evil, light and darkness as one, both the Creator and the Destroyer, and just as Abaddon and the Christian God, he is feared by all who know Him, for to see Him is to die.
