Andrew Purves is a Scottish theologian in the Reform tradition through the church of Scotland and later the Presbyterian Church USA. He is the Jean and Nancy Davis Professor Emeritus of Historical Theology at Pittsburgh Seminary Andrew was born in 1946 in Edinburgh, Scotland. In 1978 he moved to the USA and ordained by the Philadelphia Presbytery in 1979. Degrees Philosophy and Divinity at University of Edinburgh Master of Theology form Duke Divinity School Doctor of Philosophy from University of Edinburgh He served as pastor at the Hebron Presbyterian Church in Clinton, Pennsylvania until 1983 when he began teaching at Pittsburgh Theological Seminary (PTS). He retired from PTS after 32 years (2015). In addition to his academic work he has served the church and wider community though his work with the PC(USA) and lectureships around the world. He has written a number of publications, both books and articles, academic and popular. His primary concerns surround Christology - the branch of Theology concerned with the person, attributes and deeds of Jesus Christ. Recontructing pastoral Theology; A Christogical Foundation and Exploring Christology and Atonement:Conversations are two of his books. ( See Amazon sheet and ‘Purves has along list of publications’) He has become a leader of evangelical renewal in the Presbyterian Church of the USA (PC(USA) and is known for his conservative Christian views concerning the person and work of Jesus, ( See notes on PC(USA) ) He agrees with the withholding of ordination of self-avowed, practicing, unrepentant gays and lesbians. Andrew is married to Catherine (Cathy) Purves. They had 3 children.

Mark Dever is the senior pastor of the Capitol Hill Baptist Church (CHBC) in Washington D.C. He is the co-founder and president of 9Mark which was created to build biblically faithful churches in America. He earned a B.A. at Duke University, a M.A. in Divinity from Gordon-Conwell Theological Seminary, a M.A, in Theology form Southern Baptist Theological Seminary, and a Dr of Philosophy from Cambridge University. Mark grew up in rural Kentucky and was an avid reader, reading sections from encyclopedias by the age of 10. Based on his reading and thoughts he considered himself an agnostic. Later he reread the Gospel and seeing the change in the life of Jesus’ disciples led him to becoming a Christian. In 1994 he became the senior pastor of CHBC. CHBC is affiliated with the Southern Baptist Convention. Mark believes that Baptist churches should be led by a plurality of congregational elders as opposed to a single elder. In 1998 Mark founded The Center for Church Reform which eventually became*9Mark The aim of 9Mark is to help Bible believing churches become more healthy by recovering a Biblical view of the church. The 9 marks are:- Expositional preaching Biblical Theology '' understanding of the gospel '' '' '' '' conversion '' '' '' '' evangelism '' '' '' '' membership '' church discipline Promotion of Christian discipleship and growth 9 .Biblical Understanding of church leadership ( See About 9Mark) Mark and CHBC also train church leaders an a small scale. Every year 12 interns pass through the church’s internship program that centers around ecclesiology. (See Notes for definition) He is a member of the Alliance of Confessing Evangelicals (ACE) where he leads the Alliance Forum. The ACE promotes the traditional doctrines of the Protestant Reformation especially Calvinism. (See Notes for more ACE info.) Mark has become more widely recognized among conservative evangelicals as he has appeared at large nationwide conferences. He co-founded the Together for the Gospel conference. Notes on Alliance of Confessing Evangelicals Ecclesiology - definition of Sources Wikipedia