'Darkness' in the Bible

the people who sit in darkness have seen a great light, and the ones who sit in the land and shadow of death, a light has dawned on them."

But if your eye is evil, your whole body will be dark. Therefore if the light in you is darkness, how great [is] the darkness!

But the sons of the kingdom will be thrown out into the outer darkness. In that place there will be weeping and gnashing of teeth!"

Then the king said to the servants, 'Tie him up {hand and foot} [and] throw him into the outer darkness. In that place there will be weeping and gnashing of teeth!'

And throw the worthless slave into the outer darkness--in that place there will be weeping and gnashing of teeth!'

Now from the sixth hour, darkness came over all the land until the ninth hour.