Exodus 10:20-22

English Standard Version Anglicised

²⁰ But the Lord ^(A)hardened Pharaoh's heart, and he did not let the people of Israel go.

The Ninth Plague: Darkness

²¹ Then the Lord said to Moses, ^(B)“Stretch out your hand towards heaven, that there may be ^(C)darkness over the land of Egypt, a darkness to be felt.” ²² So Moses stretched out his hand towards heaven, and there was pitch darkness in all the land of Egypt for three days.