Exodus 10:21
The Ninth Blow: Darkness
10:21 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.”
Isaiah 60:2
60:2 For, look, darkness covers the earth
and deep darkness covers the nations,
but the Lord shines on you;
his splendor appears over you.