Charles Caldwell Ryrie (born 1925) was a Christian writer and theologian. He graduated from Haverford College (B.A.), Dallas Theological Seminary (Th.M., Th.D.) and the University of Edinburgh, Scotland (Ph.D.). For many years he served as professor of systematic theology and dean of doctoral studies at Dallas Theological Seminary and as president and professor at Philadelphia College of Bible, now Philadelphia Biblical University. He was a premillennial dispensationalist, though irenic in his approach. He was also the editor of the popular Ryrie Study Bible.
Good Scriptural references on the subject, specifically why a marriage is meant to last. What was ignored, is the examination of the interpretation of 1 Corinthians 7:15. Meant to last does not always turn out that way.