Exodus 10:24 ASV

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.

²⁵  And Moses said, Thou must also give into our hand sacrifices and burnt-offerings, that we may sacrifice unto Jehovah our God.

²⁶  Our cattle also shall go with us; there shall not a hoof be left behind: for thereof must we take to serve Jehovah our God; and we know not with what we must serve Jehovah, until we come thither.