How do we know Reformed theology is true?

Reformed theology claims its truth through a reliance on Scripture as the ultimate authority and a demonstration of how the doctrines of grace align with biblical principles. By examining the extensive teachings within the Bible, such as in Ephesians and Romans, one is led to affirm that God's sovereignty in salvation and His purpose in election are aseptically established. Moreover, the historical witness of the early church and the insufficient testimony from church fathers illustrate the necessity of adhering to biblical truth over human tradition.