Romans 9:15

For he said to Moses, "I will have mercy on whom I have mercy, and I will have compassion on whom I have compassion."

Exodus 33:19

He said, "I will make all my goodness pass before you, and will proclaim the name of Yahweh before you. I will be gracious to whom I will be gracious, and will show mercy on whom I will show mercy."

Romans 9:16

So then it is not of him who wills, nor of him who runs, but of God who has mercy.

Romans 9:18-19

So then, he has mercy on whom he desires, and he hardens whom he desires.

Exodus 34:6-7

Yahweh passed by before him, and proclaimed, "Yahweh! Yahweh, a merciful and gracious God, slow to anger, and abundant in loving kindness and truth,

Isaiah 27:11

When its boughs are withered, they will be broken off. The women will come and set them on fire, for they are a people of no understanding. Therefore he who made them will not have compassion on them, and he who formed them will show them no favor.

Micah 7:18

Who is a God like you, who pardons iniquity, and passes over the disobedience of the remnant of his heritage? He doesn't retain his anger forever, because he delights in loving kindness.

Treasury of Scripture Knowledge

Summary

For he saith to Moses, I will have mercy on whom I will have mercy, and I will have compassion on whom I will have compassion.

Bible References

I will have

Romans 9:16
So then it is not of him who wills, nor of him who runs, but of God who has mercy.
Exodus 33:19
He said, "I will make all my goodness pass before you, and will proclaim the name of Yahweh before you. I will be gracious to whom I will be gracious, and will show mercy on whom I will show mercy."
Exodus 34:6
Yahweh passed by before him, and proclaimed, "Yahweh! Yahweh, a merciful and gracious God, slow to anger, and abundant in loving kindness and truth,
Isaiah 27:11
When its boughs are withered, they will be broken off. The women will come and set them on fire, for they are a people of no understanding. Therefore he who made them will not have compassion on them, and he who formed them will show them no favor.
Micah 7:18
Who is a God like you, who pardons iniquity, and passes over the disobedience of the remnant of his heritage? He doesn't retain his anger forever, because he delights in loving kindness.