'Darkness' in the Bible

to shine on those who sit in darkness and the shadow of death; to guide our feet into the way of peace."

The lamp of the body is the eye. Therefore when your eye is good, your whole body is also full of light; but when it is evil, your body also is full of darkness.

Therefore see whether the light that is in you isn't darkness.

Therefore whatever you have said in the darkness will be heard in the light. What you have spoken in the ear in the inner rooms will be proclaimed on the housetops.

When I was with you in the temple daily, you didn't stretch out your hands against me. But this is your hour, and the power of darkness."

It was now about the sixth hour, and darkness came over the whole land until the ninth hour.