Exodus 8:27 DBY

²⁵  And Pharaoh called Moses and Aaron, and said, Go, sacrifice to your God in the land.

²⁶  And Moses said, It is not proper to do so; for we should sacrifice the abomination of the Egyptians to Jehovah our God: lo, if we sacrificed the abomination of the Egyptians before their eyes, would they not stone us?

²⁷  We will go three days' journey into the wilderness, and sacrifice to Jehovah our God, as he shall command us.

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.