John M. Frame is a theologian and philosopher, well-known within the Reformed Christian community. Born on April 8, 1939, he is particularly recognized for his contributions to presuppositional apologetics, which is a branch of Christian philosophy that defends the faith by arguing that all human thought presupposes the existence of God. Frame has written extensively on issues of theology, ethics, and philosophy, integrating scriptural analysis with practical application in the modern context. He served as a professor at several theological seminaries, such as Westminster Theological Seminary and Reformed Theological Seminary. He is also the author of numerous books, including "The Doctrine of the Knowledge of God," which is part of his Theology of Lordship series and reflects his approach to understanding and explaining Christian beliefs. Frame's teachings emphasize the lordship of Christ over all aspects of life and thought.