Treasury of Scripture Knowledge
The Lord said to Moses, "Extend your hand toward heaven so that there may be darkness over the land of Egypt, a darkness so thick it can be felt."
It will be a day of dreadful darkness, a day of foreboding storm clouds, like blackness spread over the mountains. It is a huge and powerful army -- there has never been anything like it ever before, and there will not be anything like it for many generations to come!
It was now about noon, and darkness came over the whole land until three in the afternoon,
2 Peter 2:4
For if God did not spare the angels who sinned, but threw them into hell and locked them up in chains in utter darkness, to be kept until the judgment,