Robert Charles Sproul ( ; born February 13, 1939) is an American Calvinist theologian, author, and pastor.
 He is the founder and chairman of Ligonier Ministries (named after the Ligonier Valley just outside Pittsburgh, where the ministry started as a study center for college and seminary students) and can be heard daily on the "Renewing Your Mind" radio broadcast in the United States and internationally.
 "Renewing Your Mind with Dr. R. C. Sproul" is also broadcast on Sirius and XM satellite radio.
 In late July 2012, a new Christian internet radio station called RefNet (Reformation Network) was also announced by Ligonier Ministries in an effort to reach "as many people as possible" where Internet access is available.
RefNet, or Reformation Network, is a Christian internet radio station launched as an outreach of Ligonier Ministries in July 2012.
 It features Bible teaching from a number of popular evangelical Christian teachers, including Alistair Begg, John MacArthur, Albert Mohler, John Piper, and R.C. Sproul, news updates from respected Christian organizations, Bible readings, audio books, and some selections of sacred and classical music.
 The theology of much of the teaching featured on RefNet is distinctly Calvinist or Reformed.
Ligonier Ministries is a Reformed international Christian organization headquartered in the greater Orlando, Florida area.
 It was founded by R. C. Sproul in the Ligonier Valley, Pennsylvania outside of Pittsburgh in 1971.
 Ligonier's stated purpose is "to awaken as many people as possible to the holiness of God by proclaiming, teaching, and defending God’s holiness in all its fullness."
 Sproul and Ligonier are particularly known for their teaching of Reformed theology, of which Calvinism is an important facet.
Alfonso G. Pablo Sr. (born September 29, 1939 in Camiling, Tarlac, Philippines) is a retired ordained Filipino Wesleyan clergyman who was General Superintendent of the Wesleyan Church of the Philippines from 1989 to 2005, and was the Chairman of the The International Conference of The Wesleyan Church (formerly Wesleyan World Fellowship) for four years from 2000.
 Pablo is currently General Superintendent "emeritus" of The Wesleyan Church of the Philippines, a distinguished professor at the Wesleyan Graduate School for Asia Pacific in Rosales, Pangasinan, adjunct professor at Asia-Pacific Nazarene Theological Seminary, and the chairman of Global Transformation Ministries (GTMI), and chairman of the Asia Evangelistic Fellowship Philippines (AEFP).
 Pablo has led various parachurch organizations in the evangelical community, including being the chairman of the Philippine Council of Evangelical Churches (PCEC).
 In 2010, Pablo published a book, "Transforming Leaders: The Filipino Church Administration".
W. Robert Godfrey is a minister in the United Reformed Church and the third President of Westminster Seminary California, where he is also Professor of Church History.
 He has taught at Westminster Seminary California since 1981 and has previously taught at Westminster Theological Seminary in Philadelphia, as well as Gordon-Conwell Theological Seminary and Stanford University.
 Godfrey is a Council member of the Alliance of Confessing Evangelicals, an organization composed of pastors and theologians from the Baptist, Presbyterian, Reformed, Anglican, Congregational, and Lutheran church communities.
 He has been a speaker at many theological conferences including those sponsored by the Philadelphia Conference on Reformed Theology, Ligonier Ministries, and the Lausanne Committee for World Evangelization.
Lee Webb was the anchor of "The 700 Club", the flagship program of The Christian Broadcasting Network (CBN), and "Newswatch", a half-hour daily news program also on CBN.
 He was born in Pompano Beach, Florida.
 Since September 2013, he has served as the vice-president of broadcasting for Ligonier Ministries in Sanford, Florida.
Trillia Newbell is the Director of Community Outreach for the Ethics and Religious Liberty Commission of the Southern Baptist Convention.
 She is the author of "United: Captured by God’s Vision for Diversity (2014)", "Fear and Faith: Finding the Peace Your Heart Craves (2015)", and her "Enjoy: Finding the Freedom to Delight Daily in God’s Good Gifts (2016)".
 In addition to her writing and the Ethics and Religious Liberty Commission, Newbell gives speeches at churches, universities, conventions, and conferences.
 She has written for newspapers, magazines, and online publications, including the Knoxville News Sentinel, The Gospel Coalition, Ligonier Ministries, Desiring God, Christianity Today, and the online blog of the Ethics and Religious Liberty Commission.
 Newbell is the founder and former managing editor of the Women of God Magazine, a defunct online publication.
 She lives in Nashville, Tennessee with her husband and two children.
The Reformation Study Bible is a study Bible published by Ligonier Ministries.
 The most recent edition (2015) is published in the English Standard Version and the New King James Version.
 Dr. R. C. Sproul is the general editor and author of the theological notes.
John Robb is the Chairman for the International Prayer Council, and formerly led the prayer ministries of World Vision.
 The IPC is a network of regional and national prayer ministries and networks around the world.
 He and the IPC provided leadership for the World Prayer Assembly that was held in Jakarta, Indonesia, May 14–18, 2012.
 The WPA united tens of millions of people to pray for the healing and transformation of the world.
Robert Craig Sproul, better known as R.C. Sproul Jr., (born July 1, 1965) is an American Calvinist Christian minister and theologian and is the son of noted Reformed theologian and founder of Ligonier Ministries, Robert Charles Sproul.

Question: Who is featured on RefNet and is the chairman of Ligonier Ministries?
Answer: R.C. Sproul