“Yahweh said to Moses, ‘Stretch forth your hand toward the heavens and there shall be darkness upon the land of Egypt, and the darkness will be tangible. Moses stretched forth his hand toward the heavens and there was a horrible darkness throughout the land of Egypt for a three-day period. No man could see his brother nor could anyone rise from his place for a three-day period; but for all the Children of Israel there was light in their dwellings . . . Yahweh hardened the heart of Pharaoh and he did not wish to send them out” (Ex 10:21-27).