Deuteronomy 23:19-20

Webster_Strongs(i)
  19 H5391 [H8686] Thou shalt not lend upon interest H251 to thy brother H5392 ; interest H3701 of money H5392 , interest H400 of food H5392 , interest H1697 of any thing H5391 [H8799] that is lent upon interest:
  20 H5237 To a stranger H5391 [H8686] thou mayest lend upon interest H251 ; but to thy brother H5391 [H8686] thou shalt not lend upon interest H3068 : that the LORD H430 thy God H1288 [H8762] may bless H4916 thee in all that thou settest H3027 thy hand H776 to in the land H935 [H8802] where thou goest H3423 [H8800] to possess it.