'Darkness' in the Bible

the people who sat in darkness saw a great light, to those who sat in the region and shadow of death, to them light has dawned."

But if your eye is evil, your whole body will be full of darkness. If therefore the light that is in you is darkness, how great is the darkness!

but the children of the Kingdom will be thrown out into the outer darkness. There will be weeping and gnashing of teeth."

What I tell you in the darkness, speak in the light; and what you hear whispered in the ear, proclaim on the housetops.

Then the king said to the servants, 'Bind him hand and foot, take him away, and throw him into the outer darkness; there is where the weeping and grinding of teeth will be.'

Throw out the unprofitable servant into the outer darkness, where there will be weeping and gnashing of teeth.'

Now from the sixth hour there was darkness over all the land until the ninth hour.