Exodus 10:3-5

3And Moses and Aaron came to Pharaoh, and said to him, Thus saith Jehovah the 1God of the Hebrews: How long dost thou refuse to humble thyself before me? let my people go, that they may serve me.

4For, if thou refuse to let my people go, behold, I will to-morrow bring locusts into thy borders;

5and they shall cover the face of the land, so that ye will not be able to see the land; and they shall eat the residue of that which is escaped, which ye have remaining from the hail, and shall eat every tree which ye have growing in the field;