Debtor's proposed modification of his confirmed plan could not be approved because Debtor did not show that the modification met the best interest of creditors test. The modification also could not be approved because Debtor had not proposed it in good faith. Lack of good faith was shown by Debtor's decision to offer unsecured creditors nothing more than disposable income despite possible excess sale proceeds and because Debtor had liquidated his farm and would not reorganize.