Proverbs 28:8

He who increases his wealth by interest and unjust gain, he shall gather it for him who will pity the poor.

Leviticus 25:36

You shall take no interest from him, or increase. But you shall fear your God, so that your brother may live with you.

Proverbs 13:22

A good man leaves an inheritance to his sons' sons, and the wealth of the sinner is laid up for the just.

Exodus 22:25

If you lend money to one of My people who is poor beside you, you shall not be to him as a money-lender, neither shall you lay upon him interest.

Proverbs 14:31

He who presses the poor curses his Maker, but he who honors Him has mercy upon the poor.

2 Samuel 12:6

And he shall restore the lamb fourfold, because he did this thing, and because he had no pity.

Job 27:16-17

Though he heaps up silver like the dust, and prepares clothing like the clay,

Proverbs 19:7

All the brothers of the poor man hate him; how much more do his friends go far from him? He pursues them with words, yet they are lacking.

Ecclesiastes 2:26

For God gives wisdom, and knowledge, and joy to a man who is good in His sight. But to the sinner He gives labor, to gather and to heap up, that he may give to him who is good before God. This also is vanity and vexation of spirit.

Ezekiel 18:8

he has not given out on usury, nor has taken any increase, he has withdrawn his hand from iniquity, has done judgment between man and man,

Ezekiel 18:13

has loaned on usury; and has taken increase; shall he then live? He shall not live! He has done all these abominations; he shall surely die; his blood shall be on him.

Ezekiel 18:17

has withdrawn his hand from the poor; has not received usury nor increase; has done My judgments; has walked in My statutes; he shall not die for the iniquity of his father; he shall surely live.

Treasury of Scripture Knowledge

Summary

He that by usury and unjust gain increaseth his substance, he shall gather it for him that will pity the poor.

Bible References

That by

Proverbs 13:22
A good man leaves an inheritance to his sons' sons, and the wealth of the sinner is laid up for the just.
Job 27:16
Though he heaps up silver like the dust, and prepares clothing like the clay,
Ecclesiastes 2:26
For God gives wisdom, and knowledge, and joy to a man who is good in His sight. But to the sinner He gives labor, to gather and to heap up, that he may give to him who is good before God. This also is vanity and vexation of spirit.

Unjust gain

Leviticus 25:36
You shall take no interest from him, or increase. But you shall fear your God, so that your brother may live with you.
Ezekiel 18:8
he has not given out on usury, nor has taken any increase, he has withdrawn his hand from iniquity, has done judgment between man and man,

Pity

Proverbs 19:7
All the brothers of the poor man hate him; how much more do his friends go far from him? He pursues them with words, yet they are lacking.
2 Samuel 12:6
And he shall restore the lamb fourfold, because he did this thing, and because he had no pity.

General references

Exodus 22:25
If you lend money to one of My people who is poor beside you, you shall not be to him as a money-lender, neither shall you lay upon him interest.
Leviticus 11:34
Of all food which may be eaten, that on which such water comes shall be unclean. And all drink that may be drunk in every such vessel shall be unclean.
Leviticus 25:14
And if you sell anything to your neighbor, or buy from your neighbor's hand, you shall not oppress one another.