Deuteronomy:23:19-20
akjv@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:
akjv@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.