Exodus 10:3-5

3So Moses and Aaron went to Pharaoh. They said to him, ‘The Lord, the God of the Israelites says this: “You are still too proud to obey me. Let my people go so that they may worship me.

4If you refuse to let them go, I will bring locusts into your country tomorrow.

5They will cover the whole country. Nobody will be able to see the ground. They will eat everything that the hail did not destroy. They will eat any crops that you still have. That will include every tree that is growing in your fields.