Exodus 10:23-25

New Revised Standard Version, Anglicised Catholic Edition

²³ People could not see one another, and for three days they could not move from where they were; but all the Israelites had light where they lived. ²⁴ Then Pharaoh summoned Moses, and said, ‘Go, worship the Lord. Only your flocks and your herds shall remain behind. Even your children may go with you.’ ²⁵ But Moses said, ‘You must also let us have sacrifices and burnt-offerings to sacrifice to the Lord our God.