Exodus 8:27-29

Amplified Bible

²⁷ We must go a three days’ journey into the wilderness and sacrifice to the Lord our God as He commands us.” ²⁸ So Pharaoh said, “I will let you go, so that you may sacrifice to the Lord your God in the wilderness; only you shall not go very far away. Plead [with your God] for me.” ²⁹ Moses said, “I am going to leave you, and I will urgently petition (pray, entreat) the Lord that the swarms of insects may leave Pharaoh, his servants, and his people tomorrow; only do not let Pharaoh act deceitfully again by not letting the people go to sacrifice to the Lord.”