Exodus 8:28-30

Darby Translation

²⁸ And Pharaoh said, I will let you go, that you may sacrifice to Jehovah your God in the wilderness; only, go not very far away: intreat for me!

²⁹ And Moses said, Behold, I go out from thee, and will intreat Jehovah; and the dog-flies will depart from Pharaoh, from his bondmen, and from his people, to-morrow; only let not Pharaoh deal deceitfully any more in not letting the people go to sacrifice to Jehovah.

³⁰ And Moses went out from Pharaoh, and intreated Jehovah.