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
The earth was without form and void, and darkness was over the face of the deep. And the Spirit of God was hovering over the face of the waters.
Let not the flood sweep over me, or the deep swallow me up, or the pit close its mouth over me.
They mounted up to heaven; they went down to the depths; their courage melted away in their evil plight;
And they begged him not to command them to depart into the abyss.
or "'Who will descend into the abyss?'" (that is, to bring Christ up from the dead).
And 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.
And when they have finished their testimony, the beast that rises from the bottomless pitwill make war on them and conquer them and kill them,