The Greek for "ought" specifically means to have a financial debt - referring to our Lord buying his own redemption as well as ours.
Neno la kiyunani "imempasa" kwa namna yake maalum maana yake kuwa na deni la fedha- likiwa linataja Bwana wetu ananunua ukombozi wake mwenyewe vile vile na wa kwetu.