[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 saw not one another, neither rose any from his place for three days: but all the children of Israel had light in their dwellings. [24] And Pharaoh called unto Moses, and said, ye, serve the LORD; only let your flocks and your herds be stayed: let your little ones [25] And Moses said, Thou must give us also sacrifices and burnt offerings, that we may sacrifice unto the LORD our God. [26] Our cattle with us; there shall not an hoof be left behind; for thereof must we take to serve the LORD our God; and we know not with what we must serve the LORD, until we come [27] But the LORD hardened Pharaoh's heart, and he would not let them go.