The United Presbyterian Church in the United States of America (UPCUSA) was the largest branch of Presbyterianism in the United States from May 28, 1958, to 1983. It was formed by the union of the Presbyterian Church in the United States of America (PCUSA), often referred to as the "Northern" Presbyterian Church, with the United Presbyterian Church of North America (UPCNA), a smaller church of Covenanter-Seceder tradition at a conference in downtown Pittsburgh, Pennsylvania, in May 1958. Vigorous ecumenical activity on the part of PCUSA leaders led to this merger, something of a reunion of two long-separated branches of the larger Presbyterian family deriving from the British Isles.
Westminster Theological Seminary (WTS) is a Protestant theological seminary in the Reformed theological tradition in Glenside, Pennsylvania. It was founded by members of the faculty of Princeton Theological Seminary in 1929 after Princeton chose to take a liberal direction during the Fundamentalist–Modernist controversy.
Benjamin Breckinridge Warfield was an American professor of Reformed theology at Princeton Seminary from 1887 to 1921. He served as the last principal of the Princeton Theological Seminary from 1886 to 1902. After the death of Warfield in office, Francis Landey Patton took over the functions of the office as the first president of seminary. Some conservative Presbyterians consider him to be the last of the great Princeton theologians before the split in 1929 that formed Westminster Theological Seminary and the Orthodox Presbyterian Church.
John Gresham Machen was an American Presbyterian New Testament scholar and educator in the early 20th century. He was the Professor of New Testament at Princeton Seminary between 1906 and 1929, and led a revolt against modernist theology at Princeton and formed Westminster Theological Seminary as a more orthodox alternative. As the Northern Presbyterian Church continued to reject conservative attempts to enforce faithfulness to the Westminster Confession, Machen led a small group of conservatives out of the church to form the Orthodox Presbyterian Church. When the Presbyterian Church in the United States of America (PCUSA) rejected his arguments during the mid-1920s and decided to reorganize Princeton Seminary to create a liberal school, Machen took the lead in founding Westminster Seminary in Philadelphia (1929) where he taught New Testament until his death. His continued opposition during the 1930s to liberalism in his denomination's foreign missions agencies led to the creation of a new organization, the Independent Board for Presbyterian Foreign Missions (1933). The trial, conviction and suspension from the ministry of Independent Board members, including Machen, in 1935 and 1936 provided the rationale for the formation in 1936 of the OPC.
The Orthodox Presbyterian Church (OPC) is a confessional Presbyterian denomination located primarily in the United States, with additional congregations in Canada, Bermuda, and Puerto Rico. It was founded by conservative members of the Presbyterian Church in the United States of America (PCUSA), who objected to the rise of Liberal and Modernist theology in the 1930s. The OPC is considered to have had an influence on evangelicalism far beyond its size.
Presuppositionalism is an epistemological school of Christian apologetics that examines the presuppositions on which worldviews are based, and invites comparison and contrast between the results of those presuppositions.
John McElphatrick Frame is a retired American Christian philosopher and Calvinist theologian especially noted for his work in epistemology and presuppositional apologetics, systematic theology, and ethics. He is one of the foremost interpreters and critics of the thought of Cornelius Van Til.
Herman Bavinck was a Dutch Calvinist theologian and churchman. He was a significant scholar in the Calvinist tradition, alongside Abraham Kuyper, B. B. Warfield, and Geerhardus Vos.
Edmund Prosper Clowney was an American theologian, educator, and pastor.
Meredith George Kline was an American theologian and Old Testament scholar. He also had degrees in Assyriology and Egyptology.
The Princeton theology was a tradition of conservative Reformed and Presbyterian theology at Princeton Theological Seminary lasting from the founding of that institution in 1812 until the 1920s, after which, due to the increasing influence of theological liberalism at the school, the last Princeton theologians left to found Westminster Theological Seminary. The appellation has special reference to certain theologians, from Archibald Alexander to B. B. Warfield, and their particular blend of teaching, which together with its Old School Presbyterian Calvinist orthodoxy sought to express a warm evangelicalism and a high standard of scholarship. W. Andrew Hoffecker argues that they strove to "maintain a balance between the intellectual and affective elements in the Christian faith."
Greg L. Bahnsen was an American Reformed philosopher, apologist, and debater. He was a minister in the Orthodox Presbyterian Church and a full-time Scholar in Residence for the Southern California Center for Christian Studies (SCCCS). He is also considered a contributor to the field of Christian apologetics, as he popularized the presuppositional method of Cornelius Van Til. He is the father of David L. Bahnsen, an American portfolio manager, author, and television commentator.
Kenneth L. Gentry Jr. is a Reformed theologian, and an ordained minister in the Reformed Presbyterian Church General Assembly. He is particularly known for his support for and publication on the topics of orthodox preterism and postmillennialism in Christian eschatology, as well as for theonomy and Young Earth creationism. He holds that each of these theological distinctives are logical and theological extensions of his foundational theology.
Darryl G. Hart is an American religious and social historian.
Vern Sheridan Poythress is an American philosopher, theologian, New Testament scholar and mathematician, who is currently the New Testament chair of the ESV Oversight Committee. He is also the Distinguished Professor of New Testament, Biblical Interpretation, and Systematic Theology at Westminster Theological Seminary and editor of Westminster Theological Journal.
Richard B. Gaffin, Jr. is a Calvinist theologian, Presbyterian minister, and was the Charles Krahe Professor of Biblical and Systematic Theology at Westminster Theological Seminary in Philadelphia, Pennsylvania from 1999 to 2008. He became the Professor Emeritus, Biblical and Systematic Theology in 2008.
David M. VanDrunen is the Robert B. Strimple Professor of Systematic Theology and Christian Ethics at Westminster Seminary California. VanDrunen was the 2004 recipient of the Acton Institute's Novak Award, a visiting fellow at the Center for the Study of Law and Religion at Emory University in 2009, and a Henry Luce III Fellow in Theology for the 2016–2017 academic year.
Richard Linwood Pratt Jr. is an American theologian, author, and founder and President of Third Millennium Ministries. Third Millennium was launched in response to the lack of training of Christian leaders around the world. Third Millennium recognizes where the church is growing the fastest, those Christian leaders have the least amount of training. Pratt personally witnessed this in the 1980s as he traveled for missions. Helping the church worldwide has become his passion. He believes that any person that has the desire to learn more about the Bible should be given that opportunity in their own land, in their own language, and at no cost.
Cornelius Van Til was a Dutch-American Reformed theologian, who is credited as being the originator of modern presuppositional apologetics.
Samuel Talbot Logan Jr. is an American ecclesiastical historian and Presbyterian minister. He is professor of Church history at Biblical Theological Seminary and former president of Westminster Theological Seminary. He served as president from 1991 to 2005. He is an ordained minister in the Orthodox Presbyterian Church. Logan's tenure was abruptly terminated in 2005 by the seminary's board of trustees due to their perception that he was too inclusive of liberal scholarship.
