Devarim 23:19-21

Orthodox Jewish Bible

^19 (20) Thou shalt not lend upon neshekh (interest) to thy brother; neshekh of kesef, neshekh of okhel, neshekh of any thing that is lent upon neshekh;

^20 (21) Unto a nokhri thou mayest lend upon neshekh; but unto thy brother thou shalt not lend upon neshekh; that Hashem Eloheicha may bless thee in all that thou settest thine hand to in ha’aretz whither thou goest to possess it.

^21 (22) When thou shalt vow a neder unto Hashem Eloheicha, thou shalt not delay to pay it; for Hashem Eloheicha will surely require it of thee; and it would be chet (sin) in thee.