The parable of the unjust steward takes place inside the economic world of a large estate. A manager is accused of wasting his master's possessions and is ordered to give an account before losing his position.
Facing dismissal, he summons the master's debtors and changes the amounts recorded on their bills.
Estate stewards could administer property, accounts, tenants, and commercial obligations on behalf of wealthy owners. Luke's reference to written bills shows formal debts rather than casual verbal favors. The commodities are substantial: one hundred baths of olive oil and one hundred kors of wheat represent large agricultural obligations, although exact modern conversions vary.
The steward's authority apparently gives him enough access to the accounts to have the debtors rewrite their documents. Interpreters debate whether he removes his commission, reduces interest, or simply defrauds the master further; the text does not explicitly settle that question.
The economic background explains why the steward's actions can materially affect his future relationships. He is using control over significant accounts to create people who will feel indebted to him after his dismissal.
Jesus does not commend dishonesty as morality. The parable draws attention to the steward's shrewd recognition that his present resources must be used in light of the future he knows is coming.