Reference: Deep And Depths
American
The deep, or the great deep, signifies in Scripture, hell, the place of punishment, the bottomless pit, Lu 8:31, compare Re 9:1; 11:7; the grave, Ro 10:7; the deepest parts of the sea, Ps 69:15; 107:26; chaos in the beginning of the world, Ge 1:2. See HELL.
See Verses Found in Dictionary
When the earth was as yet unformed and desolate, with the surface of the ocean depths shrouded in darkness, and while the Spirit of God was hovering over the surface of the waters,
Let neither the floodwaters overwhelm me nor let the deep swallow me up, nor the mouth of the well close over me.
The people ascended skyward and descended to the depths, their courage melting away in their peril.
He answered, "Legion," because many demons had gone into him. Then the demons began begging Jesus not to order them to go into the bottomless pit.
or "Who will go down into the depths?' (that is, to bring the Messiah back from the dead)."
When the fifth angel blew his trumpet, I saw a star that had fallen to earth from the sky. The star was given the key to the shaft of the bottomless pit.
When they have finished their testimony, the beast that comes up from the bottomless pit will wage war against them, conquer them, and kill them.