Exodus 10:1-5

1Then the LORD said to Moses, “Go to Pharaoh, for I have hardened1 his heart and the hearts of his officials, that I may perform these miraculous signs of Mine among them, 2and that you may tell your children and grandchildren how severely I dealt with the Egyptians when I performed miraculous signs among them, so that all of you may know that I am the LORD.”

3So Moses and Aaron went to Pharaoh and told him, “This is what the LORD, the God of the Hebrews, says: ‘How long will you refuse to humble yourself before Me? Let My people go, so that they may worship Me. 4But if you refuse to let My people go, I will bring locusts into your territory tomorrow. 5They will cover the face of the land so that no one can see it. They will devour whatever is left after the hail and eat every tree that grows in your fields.