He was the only full-time executive employed by the Steering Committee for a Continuing Presbyterian Church, whose efforts culminated in the establishment of the Presbyterian Church in America. He has served on many denominational committees, contributed articles to a number of periodicals and authored several books, including Studies in the Catechism, The Memory Work Notebook, Changeless Truth in a Changing World-- Meditations on the Westminster Confession of Faith, and To God Be the Glory, a popular history of the PCA, celebrating the denomination's 25th. Anniversary. Paul was elected Moderator of the PCA General Assembly in 1980. North Texas Presbytery granted him honorable retirement in February, 2007.
Paul has served on the Boards of Westminster Theological Seminary, Greenville Presbyterian Theological Seminary, The Presbyterian Journal, The Presbyterian Guardian, WORLD Magazine, and Women To the World.
He was married to Georgia for 54 years. She was diagnosed with Alzheimer's disease in 2002 and was taken home by the Lord in September, 2010. He has two children and three grandchildren, and lists photography, reading, music and hiking as hobbies.