Exodus 10:22-24

American Standard Version

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 one 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, Go ye, serve Jehovah; only let your flocks and your herds be stayed: let your little ones also go with you.