Romans 9:18

So then, God has pity on whomever He wants to, and He makes stubborn whomever He wants.

Matthew 13:14-15

So, the prophecy of Isaiah is being fulfilled by them, which says, [Isa. 6:9f] 'You will hear all right, but you will not understand [what you hear]. You will see all right but you will not perceive [what you see].

Acts 28:26-28

saying, [Isa. 6:9-10], 'Go to these people and say, you will hear all right, but you will not understand [what you hear]. You will see all right, but you will not perceive [what you see].

Romans 1:24-28

So, God allowed [or, abandoned] them to have the impure desires of their hearts, and to [practice] degrading behavior with their bodies among themselves.

Romans 5:20-21

Now the law of Moses was introduced [into the world] in order to cause sin to increase [i.e., it defined many things to be wrong that were previously not regarded as sin]. But with the increase of sin, God's unearned favor increased all the more.

Romans 9:15-16

For He said to Moses [Ex. 33:19], "I will show pity to whomever I want, and I will show mercy to whomever I want."

Romans 11:7-8

What then? [Just this]: The very thing that the Israelites are looking for [i.e., a right relationship with God], they have not found. But God's selected ones obtained [this right relationship with Him] and the rest [of the Israelites] were made insensitive to God's call,

Ephesians 1:6

so that we would praise His glorious, unearned favor, which was freely given to us through the One whom God loved [i.e., Christ].

2 Thessalonians 2:10-12

and all kinds of wicked deception toward those people who are perishing [spiritually], because they refused to love the truth so they could 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 said to Moses [Ex. 33:19], "I will show pity to whomever I want, and I will show mercy to whomever I want."
Romans 5:20
Now the law of Moses was introduced [into the world] in order to cause sin to increase [i.e., it defined many things to be wrong that were previously not regarded as sin]. But with the increase of sin, God's unearned favor increased all the more.
Ephesians 1:6
so that we would praise His glorious, unearned favor, which was freely given to us through the One whom God loved [i.e., Christ].

Will he

Romans 1:24
So, God allowed [or, abandoned] them to have the impure desires of their hearts, and to [practice] degrading behavior with their bodies among themselves.
Romans 11:7
What then? [Just this]: The very thing that the Israelites are looking for [i.e., a right relationship with God], they have not found. But God's selected ones obtained [this right relationship with Him] and the rest [of the Israelites] were made insensitive to God's call,
Matthew 13:14
So, the prophecy of Isaiah is being fulfilled by them, which says, [Isa. 6:9f] 'You will hear all right, but you will not understand [what you hear]. You will see all right but you will not perceive [what you see].
Acts 28:26
saying, [Isa. 6:9-10], 'Go to these people and say, you will hear all right, but you will not understand [what you hear]. You will see all right, but you will not perceive [what you see].
2 Thessalonians 2:10
and all kinds of wicked deception toward those people who are perishing [spiritually], because they refused to love the truth so they could be saved.