Reformed Theology is a branch of Protestant Christianity that emphasizes the sovereignty of God, the authority of Scripture, and the necessity of grace through faith. It originated in the 16th century during the Protestant Reformation, primarily through the teachings of theologians like John Calvin and Martin Luther. This theological perspective stresses that salvation is a gift from God, not something earned by human effort. Central to Reformed Theology is the concept of predestination, which suggests that God has already chosen who will be saved. It also highlights the importance of the Covenant, viewing God's relationship with humanity as a series of agreements. Reformed believers often practice covenant theology, which interprets the Bible through the lens of God's promises.