Imputed righteousness is the righteousness of Jesus credited to the Christian, enabling the Christian to be justified. Double imputation refers to the imputation of believers' sin to Christ and the imputation of Christ's righteousness to believers. It is closely related to the Reformed doctrine of justification by grace through faith alone. Passages like 2 Corinthians 5:21, are employed to argue for a dual imputation – the imputation of one's sin to Christ and then of his righteousness to believers in him.