Deuteronomy 23:19-20 - Interest On Loans

19 Thou shalt be no usurer unto thy brother, neither in money nor in food, nor in any manner thing that is lent upon usury. 20 Unto a stranger thou mayest lend upon usury, but not unto thy brother, that the LORD thy God may bless thee in all that thou settest thine hand to in the land whither thou goest to conquer it.