Exodus 10:4-6

4If you refuse to let them go, I will bring locusts into your country tomorrow. 5They will cover the face of the ground so that it cannot be seen. They will devour what little you have left after the hail, including every tree that is growing in your fields. 6They will fill your houses and those of all your officials and all the Egyptians—something neither your parents nor your ancestors have ever seen from the day they settled in this land till now.’ ” Then Moses turned and left Pharaoh.