Exodus 10
New International Version
The Plague of Locusts
10 Then the Lord said to Moses, “Go to Pharaoh, for I have hardened his heart and the hearts of his officials so that I may perform these signs of mine among them 2 that you may tell your children and grandchildren how I dealt harshly with the Egyptians and how I performed my signs among them, and that you may know that I am the Lord.”
Exactly.
I obviously know the Exodus passage well, but could never quite understand it.
And here we have it in action.