Exodus 10:21

Then Yahweh said to Moses, “Say to Aaron, ‘Take your staff and stretch out your hand over the waters of Egypt, over their rivers, over their streams, and over their pools and over all their reservoirs of water, that they may become blood; and there will be blood throughout all the land of Egypt, both in vessels of wood and in vessels of stone.’”

and you will grope at noon, as the blind man gropes in darkness, and you will not succeed in your ways; but you shall only be oppressed and robbed all your days, with none to save you.

“Then You performed signs and wonders against Pharaoh, Against all his servants and all the people of his land; For You knew that they acted presumptuously toward them, And made a name for Yourself as it is this day.

He sent darkness and made it dark; And they did not rebel against His words.

“And when I extinguish you, I will cover the heavens and darken their stars; I will cover the sun with a cloud, And the moon will not give its light.

And the fourth angel sounded, and a third of the sun and a third of the moon and a third of the stars were struck, so that a third of them would be darkened and the day would not shine for a third of it, and the night in the same way.

Then the fifth angel poured out his bowl on the throne of the beast, and his kingdom became darkened; and they gnawed their tongues because of pain,

The Plague of Darkness