Rev.9.1And the fifth angel blew his trumpet, and I saw a star fallen from heaven to earth, and he was given the key to the shaft of the bottomless pit.
Rev.9.2He opened the shaft of the bottomless pit, and from the shaft rose smoke the smoke of a great furnace, and the sun and the air were darkened with the smoke from the shaft.
Rev.9.11They have as king over them the angel of the bottomless pit. His name in Hebrew is Abaddon, and in Greek he is called Apollyon.
Rev.11.7And when they have finished their testimony, the beast that rises from the bottomless pit will make war on them and conquer them and kill them,
Rev.17.8The beast that you saw was, and is not, and is about to rise from the bottomless pit and go to destruction. And the dwellers on earth whose names have not been written in the book of life from the foundation of the world will marvel to see the beast, because it was and is not and is to come.
Rev.20.1Then I saw an angel coming down from heaven, holding in his hand the key to the bottomless pit and a great chain.