Full Idea
Ceteris paribus, we should pay our debts rather than give our money in charity, when we cannot do both.
Clarification
'Ceteris paribus' means 'all things being equal'
Gist of Idea
We should use money to pay debts before giving to charity
Source
W. David Ross (The Right and the Good [1930], §II)
Book Reference
Ross,W.David: 'The Right and the Good' [OUP 1930], p.30
A Reaction
This seems a neat objection to utilitarianism, though we could reply that the failure to repay a debt will lead to far more trouble, for you and for your creditor, than your failure to be charitable.