Romans 9:18

Therefore, he has mercy on whom he wills to have mercy: and whom he wills to harden, he hardens.

Matthew 13:14-15

And in them is fulfilled the prophesy of Isaiah, which says: You shall surely hear, and you will not understand; and you shall surely see, and you will not perceive.

Acts 28:26-28

saying: Go to this people and say, You shall surely hear, but you will not understand; and you shall surely see, but you will not perceive.

Romans 1:24-28

For which reason God delivered them up, in the desires of their hearts, to uncleanness, that they might dishonor their bodies among themselves;

Romans 5:20-21

But, besides the first offense, law was introduced, in order that offenses might abound: but where sin abounded, grace did much more abound:

Romans 9:15-16

For he says to Moses: I will show mercy to whom I will show mercy; and I will show compassion to whom I will show compassion.

Romans 11:7-8

What then? Israel has not obtained that which he seeks; but the chosen have obtained it, and the rest have been hardened to this day,

Ephesians 1:6

for the praise of the glory of his grace, by which he has shown us favor in the Beloved,

2 Thessalonians 2:10-12

and with all the delusion of unrighteousness in those who perish, because they did not receive the love of the truth, in order that they might be saved.

Treasury of Scripture Knowledge

Summary

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

Bible References

Hath

Romans 9:15
For he says to Moses: I will show mercy to whom I will show mercy; and I will show compassion to whom I will show compassion.
Romans 5:20
But, besides the first offense, law was introduced, in order that offenses might abound: but where sin abounded, grace did much more abound:
Ephesians 1:6
for the praise of the glory of his grace, by which he has shown us favor in the Beloved,

Will he

Romans 1:24
For which reason God delivered them up, in the desires of their hearts, to uncleanness, that they might dishonor their bodies among themselves;
Romans 11:7
What then? Israel has not obtained that which he seeks; but the chosen have obtained it, and the rest have been hardened to this day,
Matthew 13:14
And in them is fulfilled the prophesy of Isaiah, which says: You shall surely hear, and you will not understand; and you shall surely see, and you will not perceive.
Acts 28:26
saying: Go to this people and say, You shall surely hear, but you will not understand; and you shall surely see, but you will not perceive.
2 Thessalonians 2:10
and with all the delusion of unrighteousness in those who perish, because they did not receive the love of the truth, in order that they might be saved.