Terrell came to Christ at Gardendale Baptist Church in Corpus Christi during VBS in 1972 and was baptized by Bro. Bob Meadows, his lifelong mentor.  He was licensed and ordained to the ministry by Bro. Ron Early, also a foundational mentor, at First Baptist Church Portland.  He has taught Sunday School classes and facilitated small groups for many years.  He has provided pulpit supply and preached in many local area Baptist churches for over a decade.  He also served as interim pastor at local churches, as a Chaplain for Oil Patch Chaplains, as a Chaplain for the Portland Police Department, and facilitated and preached at local assisted living facilities.  He previously served multiple terms as a member of the Blanco Baptist Association Executive Board.  He is also currently a Chaplain for the local area Critical Incident Stress Management Team for first responders.