16 Then Pharaoh sent for Moses and Aaron in haste. He said, I have sinned against the Lord your God and you.
17 Now therefore forgive my sin, I pray you, only this once, and entreat the Lord your God only that He may remove from me this [plague of] death.
18 Then Moses left Pharaoh and entreated the Lord.
19 And the Lord turned a violent west wind, which lifted the locusts and drove them into the Red Sea; not one locust remained in all the country of Egypt.
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.