Exodus 10:1-2
Exodus 10:1-2 NKJV
Now the LORD said to Moses, “Go in to Pharaoh; for I have hardened his heart and the hearts of his servants, that I may show these signs of Mine before him, and that you may tell in the hearing of your son and your son’s son the mighty things I have done in Egypt, and My signs which I have done among them, that you may know that I am the LORD.”