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.
23. The Egyptians could not see one another, nor did anyone rise from his place for three days; but all the Israelites had natural light in their dwellings.
24. And Pharaoh called to Moses, and said, Go, serve the Lord; let your little ones also go with you; it is only your flocks and your herds that must not go.