Exodus 9:12-14 New English Translation (NET Bible)
12 But the Lord hardened Pharaoh’s heart, and he did not listen to them, just as the Lord had predicted to Moses.
The Seventh Blow: Hail
13 The Lord said to Moses, “Get up early in the morning, stand before Pharaoh, and tell him, ‘Thus says the Lord, the God of the Hebrews: “Release my people so that they may serve me! 14 For this time I will send all my plagues on your very self and on your servants and your people, so that you may know that there is no one like me in all the earth.