Wikipedia has the following:
The Old Testament
From the American King James Version
[Exodus 22:25] “If you lend money to any of my people that is poor by you, you shall not be to him as an usurer, neither shall you lay on him usury.”
[ Leviticus 25:36] Take you no usury of him, or increase: but fear your God; that your brother may live with you.”
[ Leviticus 25:37] You shall not give him your money on usury, nor lend him your victuals for increase.”
[ Deuteronomy 23:19] You shall not lend on usury to your brother; usury of money, usury of victuals, usury of any thing that is lent on usury: “
[ Deuteronomy 23:20] To a stranger you may lend on usury; but to your brother you shall not lend on usury: that the LORD your God may bless you in all that you set your hand to in the land where you go to possess it.”