James Twentier worked in the Prison Ministry, Nursing Home Ministry and Youth Ministry during his high school and college years. He and his wife, Marsha worked 35 years at Life Tabernacle, Houston, TX in a number of Outreach Ministries: Sunday School Bus Ministry (10 years), Home Bible Study Ministry (25 years), Singles Ministry, Visitor Follow-up Ministry, Discipleship/Home Fellowship Ministry, Compassion Ministry, and Deaf Ministry. They have been preaching and teaching in many churches with a special ministry emphasis on the two foundational themes for church growth: