Proverbs 28:8

He who becomes wealthy through unfair loans and interest collects them for the one who pitys the poor.

Leviticus 25:36

Do not collect interest or make any profit from him. Respect your God by respecting other Israelites' lives.

Proverbs 13:22

A good man leaves an inheritance to his children's children. The wealth of the sinner is preserved for the righteous.

Exodus 22:25

When you lend money to any of my people who are poor, do not act like a moneylender and require him to pay interest.

Proverbs 14:31

He who oppresses the poor reproaches his Maker. He who honors his Maker has mercy for the poor.

2 Samuel 12:6

For doing such a cruel thing he should pay back four times for the lamb he took, for he had no compassion.

Job 27:16-17

Though he heaps up silver like dust and clothes like piles of clay,

Proverbs 19:7

The brothers of the poor hate him. His friends leave him. He pursues them with words but they do not listen!

Ecclesiastes 2:26

To the man who is good, God gives wisdom and knowledge and joy. But to the sinner he gives the work of getting goods together and storing up wealth, to give to him who is good before God. This also is vanity and grasping for the wind.

Ezekiel 18:8

If he does not lend money on interest or take increase, if he keeps his hand from iniquity and executes true justice between man and man,

Ezekiel 18:13

He lends money for interest and makes excessive profits. Will this person live? He will not live. He has done all these disgusting things. So he must die, and he will be responsible for his own death.

Ezekiel 18:17

He keeps his hand from the poor and does not take interest or increase, but executes my ordinances, and walks in my statutes. He will not die for his father's iniquity. He will 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 children's children. The wealth of the sinner is preserved for the righteous.
Job 27:16
Though he heaps up silver like dust and clothes like piles of clay,
Ecclesiastes 2:26
To the man who is good, God gives wisdom and knowledge and joy. But to the sinner he gives the work of getting goods together and storing up wealth, to give to him who is good before God. This also is vanity and grasping for the wind.

Unjust gain

Leviticus 25:36
Do not collect interest or make any profit from him. Respect your God by respecting other Israelites' lives.
Ezekiel 18:8
If he does not lend money on interest or take increase, if he keeps his hand from iniquity and executes true justice between man and man,

Pity

Proverbs 19:7
The brothers of the poor hate him. His friends leave him. He pursues them with words but they do not listen!
2 Samuel 12:6
For doing such a cruel thing he should pay back four times for the lamb he took, for he had no compassion.

General references

Exodus 22:25
When you lend money to any of my people who are poor, do not act like a moneylender and require him to pay interest.
Leviticus 11:34
If water from that pottery touches any food, the food is unclean. Any liquid that you drink from that pottery is unclean.
Leviticus 25:14
In the business of trading goods for money, do no wrong to one another.