Law and Gospel
"That we may further conceive aright the moral law, we must make a difference between it and the gospel. For the gospel is that part of the word which promises righteousness and life everlasting to all that believe in Christ. The difference between them stands especially in five things. First, the law is natural, and was in man's nature before the fall; but the gospel is spiritual, revealed after the fall, in the covenant of grace. Second, the law sets forth God's justice, in rigor, without mercy; but the gospel sets out justice and mercy, united in Christ. Third, the law requires a perfect righteousness within us; but the gospel reveals our acceptance with God by imputed righteousness. Fourth, the law threatens judgements without mercy, and therefore is called the ministry of condemnation, and of death; but the gospel shows mercy to man's sin, in and by Christ, if we repent and believe. Last, the law promises life to the worker and doer of it, ...