Exodus 10:1

The Eighth Blow: Locusts

10:1 The Lord said to Moses, “Go to Pharaoh, for I have hardened his heart and the heart of his servants, in order to display these signs of mine before him,

Exodus 10:20

10:20 But the Lord hardened Pharaoh’s heart, and he did not release the Israelites.

Exodus 10:27

10:27 But the Lord hardened Pharaoh’s heart, and he was not willing to release them.