Exodus 9:12-14 Holman Christian Standard Bible (HCSB)
12 But the Lord hardened Pharaoh’s heart and he did not listen to them, as the Lord had told Moses.
The Seventh Plague: Hail
13 Then the Lord said to Moses, “Get up early in the morning and present yourself to Pharaoh. Tell him: This is what Yahweh, the God of the Hebrews says: Let My people go, so that they may worship Me. 14 Otherwise, I am going to send all My plagues against you,[a] your officials, and your people. Then you will know there is no one like Me in all the earth.