1 Samuel 2:9
He will guard the feet of His godly ones, but the wicked shall be silenced and perish in darkness; for by strength shall no man prevail.
Or look to the earth, they will behold only distress and darkness, the gloom of anguish, and into thick darkness and widespread, obscure night they shall be driven away.
While the sons and heirs of the kingdom will be driven out into the darkness outside, where there will be weeping and grinding of teeth.
Then the king said to the attendants, Tie him hand and foot, and throw him into the darkness outside; there will be weeping and grinding of teeth.
And throw the good-for-nothing servant into the outer darkness; there will be weeping and grinding of teeth.
2 Peter 2:17
These are springs without water and mists driven along before a tempest, for whom is reserved forever the gloom of darkness.
The land of sunless gloom as intense darkness, [the land] of the shadow of death, without any order, and where the light is as thick darkness.
He wanders abroad for food, saying, Where is it? He knows that the day of darkness and destruction is already close upon him.
He shall be thrust from light into darkness and driven out of the world.
Every misfortune is laid up for his treasures. A fire not blown by man shall devour him; it shall consume what is left in his tent [and it shall go ill with him who remains there].
He shall not depart out of darkness [and escape from calamity; the wrath of God] shall consume him as flame consumes a dry tree, and by the blast of His mouth he shall be swept away.
Then the fifth [angel] emptied his bowl on the throne of the beast, and his kingdom was [plunged] in darkness; and people gnawed their tongues for the torment [of their excruciating distress and severe pain]
2 Peter 2:4
For God did not [even] spare angels that sinned, but cast them into hell, delivering them to be kept there in pits of gloom till the judgment and their doom.