Usury. — See Exodus 22:25; Leviticus 25:35-36. Some recent writers on this law have thought that it forbids the putting out of money to interest. But it is noticeable that in both the previous passages referred to (in Exod. and Lev.) the loan is supposed to be made to a “poor man” in “real distress.” Usury in such cases means oppression; and so it is proved to be by the examples given in Nehemiah 5:2-5; Nehemiah 5:10-12. The connection between this exaction and modern investments is not obvious, except in a very few cases. The Mosaic law against usury does not belong to commerce with other nations; it is part of the poor law of the land of Israel.
Related Commentaries of Deuteronomy 23:19
Deuteronomy 23:19-20
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
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.