18 ‘The elders of Israel will listen to you. Then you and the elders are to go to the king of Egypt and say to him, “The Lord, the God of the Hebrews, has met with us. Let us take a three-day journey into the wilderness to offer sacrifices to the Lord our God.” 19 But I know that the king of Egypt will not let you go unless a mighty hand compels him. 20 So I will stretch out my hand and strike the Egyptians with all the wonders that I will perform among them. After that, he will let you go.
Bricks without straw
5 Afterwards Moses and Aaron went to Pharaoh and said, ‘This is what the Lord, the God of Israel, says: “Let my people go, so that they may hold a festival to me in the wilderness.”’
2 Pharaoh said, ‘Who is the Lord, that I should obey him and let Israel go? I do not know the Lord and I will not let Israel go.’
3 Then they said, ‘The God of the Hebrews has met with us. Now let us take a three-day journey into the wilderness to offer sacrifices to the Lord our God, or he may strike us with plagues or with the sword.’