'Darkness' in the Bible

"While they're watching, carry your luggage on your shoulder and go out in total darkness. Cover your face so that you won't see the land, because I'm using you as a sign to Israel's house."

I did just as I was commanded. I brought out the luggage as if it were luggage for exile. I did this during the day. Then in the evening I dug a hole in the wall with my hand and brought the luggage out in total darkness and carried it out on my shoulder while they were watching.

I'll darken the bright lights in the sky above you and bring darkness to your territory,' declares the Lord GOD.