The "Reformed tradition" refers to a branch of Protestant Christianity that emerged during the 16th century Reformation. It is characterized by its emphasis on the sovereignty of God, the authority of Scripture, and the necessity of grace through faith. Key figures in this movement include John Calvin and Huldrych Zwingli, who sought to reform the practices and beliefs of the Roman Catholic Church. This tradition has led to the development of various denominations, such as the Presbyterian and Reformed churches. The Reformed tradition also places a strong focus on the importance of community and the role of the church in society, advocating for social justice and ethical living based on biblical principles.