Exodus 10:22-24

King James 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 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 the Lord; only let your flocks and your herds be stayed: let your little ones also go with you.