Exodus 8:25-27

New Catholic Bible

²⁵ Moses answered, “I will leave you and pray to the Lord. Tomorrow the flies will depart from Pharaoh, from his ministers, and from the people. Pharaoh, however, must not deceive us by not letting the people go to perform their sacrifice to the Lord.”

²⁶ Moses left Pharaoh and prayed to the Lord. ²⁷ The Lord did as Moses said, and the flies departed from Pharaoh, from his ministers, and from his people. There was not even one left.