David DeWitt
Dave is the founder and President of Relational Concepts. After graduating from Michigan State University with a Bachelor of Science degree in mathematics, Dave moved to Dallas, Texas, where he received his Master of Theology degree from Dallas Theological Seminary in 1972. He began working for New Life in Knoxville, Tennessee where, after six years, he and some other Dallas Seminary grads began an adult evangelism ministry called Search. In 1983, Dave moved back to Michigan, his birthplace and home, where he started Relational Concepts, a discipleship ministry which operates both in west Michigan and Eastern Europe. At this time, he also completed his study and received a Doctorate of Ministry degree in Bible from Dallas Theological Seminary.
Since 1983, he and his wife Ellen have continued to travel twice a year to Poland, Czech Republic, and Romania, teaching the Bible and emphasizing discipleship. They also lead groups to Israel, a trip which emphasizes learning the layout and significance of the land of Israel as it relates to the Bible.
In 1995 Dave began the Relational Concepts’ School of Discipleship to give men and women at home and in the marketplace a Bible college/seminary training in the Bible in a format that would encourage them to disciple and reproduce it with others.
Dave and Ellen have three married daughters and nine grandchildren.
Ellen DeWitt
Ellen received her Bachelor of Science degree from Cornerstone University in Grand Rapids with a major in Ministry Leadership, and a Master of Arts degree from Calvary Seminary, with a major in Bible and Theology. She is an Equipper in the Relational Concepts’ School of Discipleship and is the Director of the Women’s Ministry. She disciples women in the Grand Rapids area as well as in Poland, Romania, and India and is the Administrator of Relational Concepts’ trips to Israel.
She has been married to Dave since 1968, has three married daughters, and nine grandchildren.
Al Lettinga
Al is a graduate of Taylor University with a Bachelor of Science degree in Psychology/Business Systems. He has owned and operated several businesses in the Steel Storage Tank Industry over the past 30 years. Currently, Al is developing a Storage Tank Business in partnership with a German Manufacturer. He has been involved in Bible study ministries and men’s discipleship with Relational Concepts for over 20 years and is Discipler and Equipper in the Relational Concepts’ School of Discipleship. Al is married to Lorie, and they have raised their family of 5 children in the Grand Rapids area, and they have 5 grandchildren. Currently, they reside in Norton Shores, Michigan.
Daran Armstrong
Daran graduated from Wayne State University with a Bachelor of Science/Business in 1984.
He has his own business, called Daran Armstrong & Associates: Waterproofing Metal Warehouses. He is a 3rd-generation resident at Maranatha Bible Conference in Muskegon, Michigan. Daran has discipled young men for many years, and he is an Equipper and Discipler in the Relational Concepts’ School of Discipleship. He and his wife Pearl have been married for 30 years, and they have 5 sons, ages 13 to 27.
Michael Kerns
Michael earned a Bachelor of Arts from The Ohio State University and Master of Theology from Dallas Theological Seminary. The College of Theology and Evangelism Fiji awarded him a Doctor of Divinity for his work in curriculum development and the creation of the Master of Arts program. Michael founded The Barnabas Associates in 1985 after eight years in Search Ministries.
Michael served in the United States Army during the Vietnam era as a Survivor Assistance Officer and an Adjutant. He served as an interim teaching elder in three different Bible churches and two Messianic congregations. While Michael taught in a variety of places overseas, he spent as much as four trips a year to teach and to disciple those in the South Pacific from 1987-2019 with ongoing meetings now via social media. He has served in youth work with high school football teams, churches and Boy Scouts. He co-developed 40 video productions for missionary organizations to tell their story. He also authored two books on evangelism.
Michael married Joyce in 1969 and have four children and seven grandchildren. Their handicapped daughter still lives with them. He continues to equip and encourage believers so that they may discover and exercise their gifts and service in the venue where Christ has called them. Michael lives in Memphis, Tennessee.
RJ Regan
RJ Regan
Dale Masbruch
Dale is a small town mid-western product with degrees in Electrical Engineering from the University of Wisconsin, Masters in Computer Science from Michigan State, and Executive training from Northwestern. Dale has lived in Wisconsin, Missouri, California, Michigan, and Israel. Discussions on Creation were the impetus to study the claims of Scripture. He accepted Christ in 1977 while in Israel and continues to be enthusiastic about spreading the word regarding Creation topics and the status of God’s people Israel.
Dale has been married to Linda for 53 years and they have two daughters and five grandchildren.