The Westminster Confession of Faith is a Reformed confession of faith, in the Calvinist theological tradition. Although drawn up by the 1646 Westminster Assembly largely of the Church of England, it became, and remains the 'subordinate standard' of doctrine in the Church of Scotland and has been influential within Presbyterian churches worldwide (with various changes it has also been adopted by some Congregationalists and even Baptists).
In 1643, the English Parliament called upon "learned, godly and judicious Divines", to meet at Westminster Abbey in order to provide advice on issues of worship, doctrine, government and discipline of the Church of England. Their meetings, over a period of five years, produced the Confession of Faith, as well as a Larger Catechism and a Shorter Catechism. For more than three centuries, various churches around the world have adopted the Confession and the Catechisms as their standards of doctrine, subordinate to the Bible.
Why teach biblical truth from a confession of faith? R. C. Sproul explains: "Though human confessions and creeds are penned by fallible people without the benefit of the inspiration of the Holy Spirit, I stand in awe at the profound level of theological and biblical precision manifest in the Westminster Confession of Faith. I would argue that the Westminster Standards are the most precise and accurate summaries of the content of biblical Christianity ever set forth in a creedal form … in my judgment, no historic confession surpasses in eloquence, grandeur, and theological accuracy the Westminster Confession of Faith."