Romans 9:17

In Scripture, again, it is said to Pharaoh-'It was for this very purpose that I raised thee to the throne, to show my power by my dealings with thee, and to make my name known throughout the world.'

Romans 9:22-23

And what if God, intending to reveal his displeasure and make his power known, bore most patiently with the objects of his displeasure, though they were fit only to be destroyed,

Romans 11:8

The rest grew callous; as Scripture says--'God has given them a deadness of mind--eyes that are not to see and ears that are not to hear--and it is so to this very day.'

Revelation 19:1-6

After this, I heard what seemed to be a great shout from a vast throng in Heaven, crying-- 'Hallelujah! To our God belong Salvation, and Glory, and Power,

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.

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Bible References

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Romans 11:8
The rest grew callous; as Scripture says--'God has given them a deadness of mind--eyes that are not to see and ears that are not to hear--and it is so to this very day.'