Romans 9:17

For the Scripture said to Pharaoh [Ex. 9:16], "I raised you up [to be a ruler] for the very purpose of demonstrating my power in your life and that my name might be made known throughout the entire world."

Romans 9:22-23

What if God [did] patiently put up with people who deserved His wrath and [who were] ready for destruction, even though He was willing to demonstrate His wrath and power?

Romans 11:8

as it has been written [Isa. 19:10], "God gave them a spirit of numbness [i.e., they developed a spiritual insensitivity to God and His word]. [He gave them] eyes to see with [but they would not look], and ears to hear with [but they did not listen]. And they still have this spirit."

Revelation 19:1-6

After these things I heard what sounded like the loud voices of a huge crowd in heaven, shouting, "Hallelujah [which means, "Praise God"]! Salvation and splendor and power belong to our God.

Treasury of Scripture Knowledge

Summary

And I will harden Pharaoh's heart, that he shall follow after them; and I will be honoured upon Pharaoh, and upon all his host; that the Egyptians may know that I am the LORD. And they did so.

Harden

Bible References

Harden

Romans 11:8
as it has been written [Isa. 19:10], "God gave them a spirit of numbness [i.e., they developed a spiritual insensitivity to God and His word]. [He gave them] eyes to see with [but they would not look], and ears to hear with [but they did not listen]. And they still have this spirit."