Dr. Alex GonzalesThe Atonement according to the Adamic Covenant


Assistant Professor of Bible Exposition– DTS Houston

BS, UC Los Angeles, 1983; STM, Old Testament Studies, DTS, 2006; MDiv, Western Seminary, 1986; PhD, Dallas Theological Seminary, 2012

Dr. Gonzales has spent twenty years teaching English around the world—in London, Guadalajara, Cochabamba (Bolivia), Tokyo, and Tainan (Taiwan). The former Dallas Baptist University and Liberty University professor enjoys reading, writing, and running. A former member of the UCLA track team and former school record holder (1,500 meter event), he also loves to run and was involved with the Fellowship of Christian Athletes ministry for many years. Dr. Gonzales and his wife, Deedy, have two adult children.

Pastor David Dykstra – The Atonement according the Davidic Covenant


David Dykstra is the pastor of Grace Covenant Baptist Church in Willis, TX. After serving as the pastor of a church in New Jersey for 34 years he accepted a call to Texas in 2008.

David is a 1972 graduate of Northeastern Bible College, Essex Fells, New Jersey (now Kings College, New York City).

He has been married to his wife Debbie for 42 years and have 4 grown daughters and 15 grandchildren.

Pastor Dykstra is the author of “Yearning to Breathe Free: Thoughts on Immigration, Islam, & Freedom (2006) & co-author of “Holding Communion Together” (2014). He is one of the original founders of the Association of Reformed Baptist Churches of America (ARBCA), as well as the Texas Area Association of Reformed Baptist Churches (TAARBC). He currently serves on ARBCA’s Administrative Council, as well as on their Membership Committee, & Policy & Constitution Committee.

Dr. Duncan RankinThe Atonement according to the Abrahamic Covenant


Adjunct Professor of Systematic Theology at Reformed Theological Seminary in Houston, and also on the Board of GRACE—Godly Response to Abuse in the Christian Environment.

Member of Houston Metro Presbytery of the Presbyterian Church in America.
Recently moved to the New River Valley, Virginia for writing & Gospel work in the Blue Ridge area.


Raised in a Southern Presbyterian home with shared roots in the Moravian ministry, Dr. Rankin graduated summa cum laude from Clemson University in Ceramic Engineering, where he was founding president of the campus Inter-Varsity Christian Fellowship. After working for DuPont at the Savannah River Laboratory and Ph.D. studies in Materials Science at the Massachusetts Institutes of Technology, the Lord redirected Duncan’s steps from a successful career in the sciences towards the Gospel ministry in the Presbyterian Church in America (PCA). After completing his Master of Divinity studies at Covenant Theological Seminary and Reformed Theological Seminary (RTS) in Jackson, Mississippi, he took his Ph.D. at the New College of the University of Edinburgh by writing on “Carnal Union with Christ in the Theology of T.F. Torrance.”

Appointed to the Department of Systematic Theology at RTS-Jackson in 1993, Duncan served 10 years full time, teaching courses in dogmatic and historical theology. Active on the Theology and Strategy Working Group of the Lausanne Committee for World Evangelization, Duncan was also a recipient of a John Templeton Foundation 1999 Science and Religion Course Prize and taught a course in Science and Theology at RTS.  At the Millennium, the Rankin family escaped the ravages of Y2K by sojourning in the quiet Scottish Highland village of Muir of Ord, before Duncan served as guest minister for Dr. David Robertson at St. Peter’s Free Church of Scotland in Dundee, home of the historic pulpit of Rev. Robert Murray M’Cheyne and current home of the SOLAS Ministry.

Since 2003, Duncan has pastored churches in Mississippi, Tennessee, and Georgia before finally making it to Texas as fast as he could, where he now joyfully serves on the staff of Christ Church (PCA), Katy, Texas.  In addition to service at RTS, Duncan is also a member of the Board of Directors for GRACE—a Godly Response to Abuse in the Christian Environment and a Visiting Professor for Ligonier Ministries’ Reformation Bible College, Sanford, Florida.  He and his wife Shirley have three fine children and love living in the Houston area!


Clemson University, B.S.
Reformed Theological Seminary, M.Div.
University of Edinburgh, Ph.D.