Deuteronomy 23:19-20

Revised Standard Version

¹⁹ “You shall not lend upon interest to your brother, interest on money, interest on victuals, interest on anything that is lent for interest. ²⁰ To a foreigner you may lend upon interest, but to your brother you shall not lend upon interest; that the Lord your God may bless you in all that you undertake in the land which you are entering to take possession of it.