Exodus 10:20-22

New American Standard Bible

²⁰ But ^(A)the Lord ^[a]hardened Pharaoh’s heart, and he did not let the sons of Israel go.

Darkness over the Land

²¹ Then the Lord said to Moses, “^(B)Reach out with your hand toward the sky, so that there may be darkness over the land of Egypt, even a darkness ^(C)which may be felt.” ²² So Moses reached out with his hand toward the sky, and there was ^(D)thick darkness in all the land of Egypt for three days.