Exodus 10:20-22

Amplified Bible, Classic Edition

²⁰ But the Lord made Pharaoh’s heart more strong and obstinate, and he would not let the Israelites go.

²¹ And the Lord said to Moses, Stretch out your hand toward the heavens, that there may be darkness over the land of Egypt, a darkness which may be felt.

²² So Moses stretched out his hand toward the sky, and for three days a thick darkness was all over the land of Egypt.