Deuteronomy 23: 19-22 loans, usery ok to others

Writen in the time of Moses 1400 BC 

Deuteronomy 23: 19-22

 19Thou shalt not lend upon usury to thy brother; usury of money, usury of victuals, usury of any thing that is lent upon usury:

 20Unto 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.

 21When thou shalt vow a vow unto the LORD thy God, thou shalt not slack to pay it: for the LORD thy God will surely require it of thee; and it would be sin in thee.

 22But if thou shalt forbear to vow, it shall be no sin in thee.