Who We Are
CASM Leadership
We believe that as the leadership goes, so goes the church. Leadership must model Christlikeness for the flock. Leadership must also equip the saints for the work of ministry. We unashamedly follow the biblical model of godly, qualified male leadership.

Dr. Marvin R. Knight
Senior Pastor
Dr. Marvin R. Knight is the pastor-teacher of The Church at South Mountain (CASM). He earned his Doctorate in Ministry from The Master’s Seminary in 2022. Dr. Knight holds a Certificate in Ministry and has a Master’s degree from Knox Theological Seminary. He also received his degrees in Pastoral Ministry and Theology from Arizona College of the Bible in 1988. Dr. Knight served as an Associate Pastor for seven years at North Phoenix Baptist Church under Dr. Richard Jackson before planting CASM.
Dr. Knight is originally from the Phoenix area. He was the athlete’s chaplain at Grand Canyon University in 1993. He served on the Board of Arizona College of the Bible in 1996. He is also a certified church planter with Urban Evangelical Mission. In 2004, he was selected to participate in the Expositor’s Institute with Dr. John MacArthur. Dr. Knight is the author of over 100 study guides, booklets, and pamphlets aimed at explaining theological truth in an understandable way with a view toward application. He and his wife, Mary, have two sons: Jordan and Joshua.
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Andy Lack
Missions Pastor
Dr. Andy Lack serves as the Missions Pastor and was ordained to this role in 2013. He has been attending the church since 2005. Andy is originally from Wichita, Kansas, and grew up in Charleston, Illinois. He received his BA in Anthropology from the University of Illinois and his MA and PhD in Anthropology from Arizona State University. He currently works as an archaeologist and ceramic analyst in the cultural resource management industry. Andy and his wife, Sara, have two children: Stephen and John.
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Robert Gray
Elder
Robert has been attending the church since 2007. He was ordained as Deacon in 2010 and Elder in 2016. Robert is originally from Roswell, New Mexico. He received his BA in English from Grand Canyon College and his M. Ed in School Leadership and Supervision from Loyola College. He is the Director of Curriculum and Instruction for Salt River Pima Maricopa Indian Community in Scottsdale. Robert and his wife, Nicole, have two children: Gabriella and Alberto.
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Julien Kinsale
Elder
Julien attended the church from 1994 until 2009. He then moved to Washington State for work, returned to CASM in 2012, and was ordained as Elder in 2013. Julien is originally from the Island of Trinidad and works as a pipefitter/welder. He and his wife, Lori, have three children: PJ, Elijah, and Samuel.
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Rodney Davis
Elder
Rodney has been attending the church since 1994. He was ordained as Deacon in 1997 and Elder in 2013. Rodney is originally from Chicago, Illinois. He is a retired Firefighter Captain. Rodney and his wife, Bernadette, have eight children: Abram, Valencia, Nadia, Aysha, Alily, Saul, Davin, and Dairion.
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Mark Ruggles
Elder
Mark has been attending the church since 2001. He was ordained as Deacon in 2008 and Elder in 2015. Mark is originally from Bloomington, Indiana. He received his BA in Journalism from Indiana University and works full-time as a software analyst. Mark and his wife, DeeDee, have two children: Benjamin and Luke.
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Craig Cummings
Elder
Craig has been attending the church since 2010. He was ordained as Elder in 2019. Craig is originally from Clarksdale, Mississippi. He received his Bachelor’s Degree in Business Administration from Ole Miss and an Associates of Applied Science in Computer Information Systems from Chandler-Gilbert Community College. He currently works as a Director of Technology for Scottsdale Christian Academy. Craig and his wife, Verines, have two children: Craig Jr. and Camille and one grandson Cameron.