The ninth of the plagues in Egypt, the plague of darkness:
- 21 And the Lord said unto Moses, Stretch out thine hand toward heaven, that there may be darkness over the land of Egypt, even darkness which may be felt.
- 22 And Moses stretched forth his hand toward heaven; and there was a thick darkness in all the land of Egypt three days:
- 23 They saw not one another, neither rose any from his place for three days: but all the children of Israel had light in their dwellings.
- Ex. 10:21-23.