Exodus 7:4-6 World English Bible (WEB)
4 But Pharaoh will not listen to you, and I will lay my hand on Egypt, and bring out my armies, my people the children of Israel, out of the land of Egypt by great judgments. 5 The Egyptians shall know that I am Yahweh, when I stretch out my hand on Egypt, and bring out the children of Israel from among them.”
6 Moses and Aaron did so. As Yahweh commanded them, so they did.