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
Now the earth was formless and empty, darkness covered the surface of the watery depths, and the Spirit of God was hovering over the surface of the waters.
Don't let the floodwaters sweep over me or the deep swallow me up; don't let the Pit close its mouth over me.
Rising up to the sky, sinking down to the depths, their courage melting away in anguish,
or, "Who will go down into the abyss?" that is, to bring Christ up from the dead.
The fifth angel blew his trumpet, and I saw a star that had fallen from heaven to earth. The key to the shaft of the abyss was given to him.
When they finish their testimony, the beast that comes up out of the abyss will make war with them, conquer them, and kill them.