The bible is full of references regarding granting relief to the debtor.

You can read specific qoutes from scripture regarding relief from debt on this page at openbible.info.   Although the bible says that one should pay ones debts, it also says that bad things happen to good people, and every seven years a person is entitled to a fresh start and to be free from the greedy money lenders.

This attorney from Virginia has a nice but short discussion about bankruptcy and the bible: