Reformed worship will emphasize and feature biblically based, hermeneutically sound expository preaching of the Holy Scripture, the only infallible rule of faith and practice, as interpreted by the Westminster Confession of Faith and the two Westminster Catechisms.
Reformed worship will also include contemplation of God’s holy law, in keeping with the law-gospel paradigm, in order to aid the worshiper in his understanding of his vileness before God (its second use) and to promote its use as a guide for Christian conduct (its third use). Our carnal and antinomian age is in desperate need of a healthy dose of the law of God. Evangelical Christians have become morally lazy, excuse-ridden, and relativistic. It is the Reformed tradition, above all others, which has given prominence to reading and meditating on the law of God. Regular contemplation of God’s holy law in worship would do much to cure this age of its rampant immorality and “carnal Christianity” and to restore true personal piety, parents’ and children’s responsibilities, and the Protestant work ethic in the world.
From: A New Systematic Theology of the Christian Faith by Robert L. Reymond (Nashville: Thomas Nelson Publishers, 1998), p. 874.
Robert L. Reymond (1932-2013) was Professor of Systematic Theology at Covenant Theological Seminary in St. Louis, Missouri, from 1968 to 1990.