18. And they shall hear your voice. And you shall enter, you and the elders of Israel, to the king of Egypt, and you shall say to him: 'The Lord God of the Hebrews has called us. We shall go three days' journey into the wilderness, in order to offer sacrifice to the Lord our God.'
19. But I know that the king of Egypt will not release you, unless you go out by a powerful hand.
20. For I will extend my hand, and I will strike Egypt with all my wonders that I will do in the midst of them. After these things, he will release you.
21. And I will grant favor to this people in the sight of the Egyptians. And so, when you go forth, you shall not go out empty.