Usury
is interest of any nature in the Bible. We use the term to mean unreasonable
interest. It could not be charged by an Israelite to an Israelite.
Exodus 22:25 If thou lend money to any of my people that is poor by thee,
thou shalt not be to him as an usurer, neither shalt thou lay upon him usury.
They could charge interest to a stranger:
Deuteronomy 23:19 Thou shalt not lend upon usury to thy brother; usury of
money, usury of victuals, usury of any thing that is lent upon usury:
Deuteronomy 23:20 Unto a stranger thou mayest lend upon usury; but unto
thy brother thou shalt not lend upon usury: that the LORD thy God may bless thee
in all that thou settest thine hand to in the land whither thou goest to possess
it.
Psalm 15:5 would have to be considered in the light of these other Scriptures
and would have to do with lending to other Israelites who are poor.
The Lord criticized a servant who could have invested money and gotten interest
who did not do it.
Mat 25:27 Thou oughtest therefore to have put my money to the exchangers,
and then at my coming I should have received mine own with usury.
My personal conviction is that Christians should never charge another poor
Christian interest. I would go further and say that anytime you are making
money off of someone who needs the money to meet daily expenses because they are
poor you should not charge interest. How are they going to pay the
interest if they didn't have the money to pay the bill in the first place?
However, when we are making an investment where the person using the money
should get a rate of return that exceeds the interest we are charging them, that
is a different story. Then it is ok to charge interest.
So when you are helping the poor, particularly the Christian poor, do not charge
interest. (You might even want to consider making a gift to the person).
But if you are making an investment in a business that will use the money to
make more money than they could have made without it, that is not the usury that
is condemned by the Lord.