19 And the Lord turned a mighty strong west wind, which took away the locusts and cast them into the Red sea; there remained not one locust in all the borders of Egypt.
20 But the Lord hardened Pharaoh’s heart, so that he would not let the sons of Israel go.
21 And the Lord said unto Moses, Stretch out thine hand toward heaven, that there may be darkness over the land of Egypt, even darkness which may be felt.
22 And Moses stretched forth his hand toward heaven, and there was a thick darkness in all the land of Egypt three days.
23 They did not see one another, neither did any rise from his place for three days; but all the sons of Israel had light in their dwellings.
24 Then Pharaoh called unto Moses and said, Go, serve the Lord; only let your sheep and your cows remain; let your little ones also go with you.
25 And Moses replied, Thou also must give us sacrifices and burnt offerings that we may sacrifice unto the Lord our God.