Our right to eternal life is based on the imputed righteousness of Christ. Nothing can be added to that, not even a single good work. Justification is an act that can never be revoked. That is why we are justified by faith alone in this life, because through faith alone we receive this inestimable gift. But the final goal of our salvation is glorification and the vision of Christ (beatific vision). When we stand before God our justification, whereby we stand clothed in Christ's perfect righteousness (i.e., his active and passive obedience), enables us to withstand the demands of God's righteous, holy law.