Afterward Moses and Aaron went to Pharaoh and said, “Thus says the LORD, the God of Israel, ‘Let my people go, so that they may celebrate a festival to me in the wilderness.’ ” But Pharaoh said, “Who is the LORD, that I should heed him and let Israel go? I do not know the LORD, and I will not let Israel go.” Then they said, “The God of the Hebrews has revealed himself to us; let us go a three days’ journey into the wilderness to sacrifice to the LORD our God, or he will fall upon us with...