23 And I will put a division and a sign of deliverance between My people and your people. By tomorrow shall this sign be in evidence.
24 And the Lord did so; and there came heavy and oppressive swarms [of bloodsucking gadflies] into the house of Pharaoh and his servants' houses; and in all of Egypt the land was corrupted and ruined by reason of the great invasion [of gadflies].
25 And Pharaoh called for Moses and Aaron, and said, Go, sacrifice to your God [here] in the land [of Egypt].
26 And Moses said, It is not suitable or right to do that; for the animals the Egyptians hold sacred and will not permit to be slain are those which we are accustomed to sacrifice to the Lord our God; if we did this before the eyes of the Egyptians, would they not stone us?
27 We will go a three days' journey into the wilderness and sacrifice to the Lord our God, as He will command us.
28 So Pharaoh said, I will let you go, that you may sacrifice to the Lord your God in the wilderness; only you shall not go very far away. Entreat [your God] for me.
29 Moses said, I go out from you, and I will entreat the Lord that the swarms [of bloodsucking gadflies] may depart from Pharaoh, his servants, and his people tomorrow; only let not Pharaoh deal deceitfully any more in not letting the people go to sacrifice to the Lord.