Exodus 8:15

But when Pharaoh saw there was relief, he hardened his heart and would not listen to them, as the Lord had said.

Exodus 7:4

Pharaoh will not listen to you, but I will put My hand on Egypt and bring the divisions of My people the Israelites out of the land of Egypt by great acts of judgment.

Ecclesiastes 8:11

Because the sentence against a criminal act is not carried out quickly, the heart of people is filled with the desire to commit crime.

Exodus 4:21

The Lord instructed Moses, “When you go back to Egypt, make sure you do all the wonders before Pharaoh that I have put within your power. But I will harden his heart so that he won’t let the people go.

Exodus 7:13-14

However, Pharaoh’s heart hardened, and he did not listen to them, as the Lord had said.

Exodus 14:5

When the king of Egypt was told that the people had fled, Pharaoh and his officials changed their minds about the people and said: “What have we done? We have released Israel from serving us.”

Proverbs 29:1

One who becomes stiff-necked,
after many reprimands
will be shattered instantly—
beyond recovery.

Isaiah 26:10

But if the wicked man is shown favor,
he does not learn righteousness.
In a righteous land he acts unjustly
and does not see the majesty of the Lord.

Jeremiah 34:7-11

while the king of Babylon’s army was attacking Jerusalem and all of Judah’s remaining cities—against Lachish and Azekah, for they were the only ones left of Judah’s fortified cities.

Hosea 6:4

What am I going to do with you, Ephraim?
What am I going to do with you, Judah?
Your loyalty is like the morning mist
and like the early dew that vanishes.

Zechariah 7:11-12

But they refused to pay attention and turned a stubborn shoulder; they closed their ears so they could not hear.

Hebrews 3:8

do not harden your hearts as in the rebellion,
on the day of testing in the wilderness,

Hebrews 3:15

As it is said:

Today, if you hear His voice,
do not harden your hearts as in the rebellion.

Revelation 16:9

and people were burned by the intense heat. So they blasphemed the name of God, who had the power over these plagues, and they did not repent and give Him glory.

Treasury of Scripture Knowledge

Summary

But when Pharaoh saw that there was respite, he hardened his heart, and hearkened not unto them; as the LORD had said.

Bible References

He hardened

Exodus 4:21
The Lord instructed Moses, “When you go back to Egypt, make sure you do all the wonders before Pharaoh that I have put within your power. But I will harden his heart so that he won’t let the people go.
Exodus 7:4
Pharaoh will not listen to you, but I will put My hand on Egypt and bring the divisions of My people the Israelites out of the land of Egypt by great acts of judgment.
Proverbs 29:1
One who becomes stiff-necked,
after many reprimands
will be shattered instantly—
beyond recovery.
Zechariah 7:11
But they refused to pay attention and turned a stubborn shoulder; they closed their ears so they could not hear.
Hebrews 3:8
do not harden your hearts as in the rebellion,
on the day of testing in the wilderness,
Revelation 16:9
and people were burned by the intense heat. So they blasphemed the name of God, who had the power over these plagues, and they did not repent and give Him glory.

General references

Exodus 7:13
However, Pharaoh’s heart hardened, and he did not listen to them, as the Lord had said.
Exodus 8:32
But Pharaoh hardened his heart this time also and did not let the people go.
Jeremiah 34:11
Afterward, however, they changed their minds and took back their male and female slaves they had freed and forced them to become slaves again.

Holman Christian Standard Bible®, Copyright © 1999, 2000, 2002, 2003, 2009 by Holman Bible Publishers.