Exodus 10:21-29

²¹Then the Lord said to Moses, “Reach out with your hand toward the sky, so that there may be darkness over the land of Egypt, even a darkness which may be felt.” ²²So Moses reached out with his hand toward the sky, and there was thick darkness in all the land of Egypt for three days. ²³They did not see one another, nor did anyone rise from his place for three days, but all the sons of Israel had light in their dwellings. ²⁴Then Pharaoh called for Moses, and said, “Go, serve the Lord; only let your flocks and your herds be left behind. Even your little ones may go with you.” ²⁵But Moses said, “You must also let us have sacrifices and burnt offerings, so that we may sacrifice them to the Lord our God. ²⁶Therefore, our livestock too shall go with us; not a hoof shall be left behind, for we shall take some of them to serve the Lord our God. And until we arrive there, we ourselves do not know with what we shall serve the Lord.” ²⁷But the Lord hardened Pharaoh’s heart, and he was not willing to let them go. ²⁸Then Pharaoh said to him, “Get away from me! Be careful, do not see my face again, for on the day you see my face, you shall die!” ²⁹Moses said, “You have spoken correctly; I shall never see your face again!”