Exodus 10:23-25 Darby Translation (DARBY)
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 Moses and said, Go, serve Jehovah; only, let your flocks and your herds remain; let your little ones also go with you.
25 And Moses said, Thou must give also sacrifices and burnt-offerings into our hands, that we may sacrifice to Jehovah our God.