Romans 9:18

So then, He has mercy on whom He wills (chooses), and He hardens [the heart of] whom He wills.

Exodus 4:21

The Lord said to Moses, “When you return to Egypt, see that you perform before Pharaoh all the wonders (miracles) which I have put in your hand, but I will harden his heart and make him stubborn so that he will not let the people go.

Deuteronomy 2:30

But Sihon king of Heshbon was not willing for us to travel through his land; for the Lord your God hardened his spirit and made his heart obstinate, in order to hand him over to you, as he is today.

Joshua 11:20

For it was [the purpose] of the Lord to harden their hearts, to meet Israel in battle so that Israel would utterly destroy them, that they would receive no mercy, but that Israel would destroy them, just as the Lord had commanded Moses.

Exodus 7:13

Yet Pharaoh’s heart was hardened and he would not listen to them, just as the Lord had said.

Isaiah 63:17


O Lord, why do You cause us to stray from Your ways
And harden our heart from fearing You [with reverence and awe]?
Return for Your servants’ sake, the tribes of Your heritage.

Matthew 13:14-15

In them the prophecy of Isaiah is being fulfilled, which says,

You will hear and keep on hearing, but never understand;
And you will look and keep on looking, but never comprehend;

Acts 28:26-28

Go to this people and say,

You will keep on hearing, but will not understand,
You will keep on seeing, but will not perceive;

Romans 1:24-28

Therefore God gave them over in the lusts of their own hearts to [sexual] impurity, so that their bodies would be dishonored among them [abandoning them to the degrading power of sin],

Romans 5:20-21

But the Law came to increase and expand [the awareness of] the trespass [by defining and unmasking sin]. But where sin increased, [God’s remarkable, gracious gift of] grace [His unmerited favor] has surpassed it and increased all the more,

Romans 9:15-16

For He says to Moses, “I will have mercy on whomever I have mercy, and I will have compassion on whomever I have compassion.”

Romans 11:7-8

What then? Israel failed to obtain what it was seeking [that is, God’s favor by obedience to the Law], but the elect [those chosen few] obtained it, while the rest of them became hardened and callously indifferent;

Ephesians 1:6

to the praise of His glorious grace and favor, which He so freely bestowed on us in the Beloved [His Son, Jesus Christ].

2 Thessalonians 2:10-12

and by unlimited seduction to evil and with all the deception of wickedness for those who are perishing, because they did not welcome the love of the truth [of the gospel] so as to be saved [they were spiritually blind, and rejected the truth that would have saved them].

Treasury of Scripture Knowledge

Summary

Therefore hath he mercy on whom he will have mercy, and whom he will he hardeneth.

General references

Bible References

Hath

Romans 9:15
For He says to Moses, “I will have mercy on whomever I have mercy, and I will have compassion on whomever I have compassion.”
Romans 5:20
But the Law came to increase and expand [the awareness of] the trespass [by defining and unmasking sin]. But where sin increased, [God’s remarkable, gracious gift of] grace [His unmerited favor] has surpassed it and increased all the more,
Ephesians 1:6
to the praise of His glorious grace and favor, which He so freely bestowed on us in the Beloved [His Son, Jesus Christ].

Will he

Romans 1:24
Therefore God gave them over in the lusts of their own hearts to [sexual] impurity, so that their bodies would be dishonored among them [abandoning them to the degrading power of sin],
Romans 11:7
What then? Israel failed to obtain what it was seeking [that is, God’s favor by obedience to the Law], but the elect [those chosen few] obtained it, while the rest of them became hardened and callously indifferent;
Exodus 4:21
The Lord said to Moses, “When you return to Egypt, see that you perform before Pharaoh all the wonders (miracles) which I have put in your hand, but I will harden his heart and make him stubborn so that he will not let the people go.
Exodus 7:13
Yet Pharaoh’s heart was hardened and he would not listen to them, just as the Lord had said.
Deuteronomy 2:30
But Sihon king of Heshbon was not willing for us to travel through his land; for the Lord your God hardened his spirit and made his heart obstinate, in order to hand him over to you, as he is today.
Joshua 11:20
For it was [the purpose] of the Lord to harden their hearts, to meet Israel in battle so that Israel would utterly destroy them, that they would receive no mercy, but that Israel would destroy them, just as the Lord had commanded Moses.
Isaiah 63:17

O Lord, why do You cause us to stray from Your ways
And harden our heart from fearing You [with reverence and awe]?
Return for Your servants’ sake, the tribes of Your heritage.
Matthew 13:14
In them the prophecy of Isaiah is being fulfilled, which says,

You will hear and keep on hearing, but never understand;
And you will look and keep on looking, but never comprehend;
Acts 28:26
Go to this people and say,

You will keep on hearing, but will not understand,
You will keep on seeing, but will not perceive;
2 Thessalonians 2:10
and by unlimited seduction to evil and with all the deception of wickedness for those who are perishing, because they did not welcome the love of the truth [of the gospel] so as to be saved [they were spiritually blind, and rejected the truth that would have saved them].

General references

Exodus 10:20
But the Lord hardened Pharaoh’s heart [so that it was even more resolved and obstinate], and he did not let the Israelites go.