Calvin on Imputation to the Very End

Another excellent excerpt from Calvin's Commentary on Lk 1:77, regarding the necessity of imputation throughout life,

Hence it follows, that not only does the commencement of righteousness depend on the forgiveness of sins, but it is by imputation that believers are righteous before God to the very end: for they cannot appear before his tribunal in any other way than by betaking themselves daily to a free reconciliation.