David and Geneva were born and grew up in Arkansas. They became childhood sweethearts at age 14. They were married in 1949. They have three children Rev. David Bruce, Rev. Duwane and Gayla all of whom are in the ministry. They have ten grandchildren and five great grandchildren.

David was a police officer in Little Rock, Arkansas for over twenty (20) years rising to the rank of Inspector (Assistant Chief). He attended over 25 law enforcement schools including the FBI National Academy in Washington DC. He served as President of Arkansas Chapter of the FBI National Academy Association, Secretary of Arkansas Chiefs of Police Association, instructor in Arkansas Law Enforcement Training Academy as well as several other positions within the law enforcement community. After retiring from the Little Rock Police Department he became Chief of Police for two large Veterans Hospitals in Little Rock and later Chief of Police in Camden, Arkansas where he remained until June 1977. At that time he retired from police work after over 25 years and surrendered to the call of the Lord as an Evangelist.

In 1977 they established David Bentley and The Believers Ministry a IRS recognized 501(c)3 non profit corporation. David and Geneva are Spirit filled and preach the Bible is the infallible word of God. Roberta Sims, David’s sister, is an active part of the ministry as bookkeeper and prayer.

David, a charismatic evangelist, has attracted thousands to crusades around the world. He seems to be a preacher that makes a difference. He has a special knack for delivering thought provoking messages that are simple enough for a child to understand and yet with depth that will enlighten the most intellectual.

David takes the Word of God and applies it to every day life by using stories of his real life experiences. In so doing many have reported, "For the first time I see what the scripture is saying, you made it so simple".

Their travels have taken them around the world ministering to individuals, Christian groups, Ministries, Churches and groups of Churches in revivals, crusades and seminars. In recent years while ministering in foreign countries David has emphasized "Minister Conferences" in conjunction with "Crusades". They believe the way to change the culture is to train the local leaders (apostles, prophets, evangelist, pastors and teachers) so they can train their people fulfilling the Word of God as it is stated in Ephesians 4:11-12.

David is currently the President of World Ministry Fellowship, Plano, Texas. World Ministry Fellowship is a fellowship of hundreds of ministers around the world whose purpose is spreading the Good News about Christ and fulfilling the Great Commission.