Law and Gospel
Since the law is an expression of God’s being, humans are naturally subject to it. The law is everlasting; it was inscribed on Adam’s heart, is again engraved on the heart of the believer by the Holy Spirit, and in heaven all believers will live according to it. While the law no longer makes demands upon the believer as a condition for salvation, it is still the believer’s object of delight and meditation. Accordingly, the law must always be proclaimed in the church alongside the gospel.
Herman Bavinck, Reformed Dogmatics: Holy Spirit, Church, and New Creation, ed. John Bolt, trans. John Vriend, vol. 4 (Grand Rapids, MI: Baker Academic, 2008), 442.