John Calvin (1509–1564) was an influential French theologian and pastor during the Protestant Reformation. He was a principal figure in the development of the system of Christian theology later called Calvinism. John Calvin was Martin Luther's successor as the preeminent Protestant theologian. Calvin made a powerful impact on the fundamental doctrines of Protestantism, and is widely credited as the most important figure in the second generation of the Protestant Reformation.
Not three gods in one God. Think of a person with multiple personalities. They may have three persons in one body/mind. In humans this is a disorder, but in God it is the Order of the Divine Essence to exist in three persons.
Dr. SINCLAIR FERGUSON (born 1948) is a Scottish theologian known in Reformed Christian circles for his teaching, writing, and editorial work. He is one of the most-respected Reformed theologians in the world today. He earned his M.A., B.D., and Ph.D. from the University of Aberdeen. He taught systematic theology full-time at Westminster Theological Seminary in Philadelphia for many years and continues to teach there as a visiting professor, and teaching fellow for Ligonier Ministries.
Jennings Ligon Duncan III (born 1960) is an American Presbyterian scholar and pastor. Duncan was named senior pastor at First Presbyterian Church of Jackson, Mississippi (PCA) in 1996, and served in that capacity until early 2014. Effective January 1, 2014, Duncan resigned his position as Sr. Minister at First Presbyterian Church, Jackson, MS, and assumed the role of Chancellor of Reformed Theological Seminary. He continues to teach in the department of Systematic Theology.
Paul David Washer (born 1961) is the Founder/Director & Missions Coordinator of HeartCry Missionary Society which supports indigenous missionary work. Washer's sermons tend to have an evangelistic focus on the gospel and the doctrine of the assurance of salvation and predestination, and he frequently speaks against modern church practices such as the sinner's prayer, and a focus on numerical church growth.