Constantine Campbell’s 480-page book Paul and Union with Christ: An Exegetical and Theological Study was released in November of 2012 by Zondervan. On a back-cover blurb Don Carson calls it, “Highly recommended.” Dr. Campbell’s book is thorough in exegesis of biblical texts, meticulous in its organization and structure, and encyclopedic in scope. Paul and Union with Christ is certain to become a standard work, and it’s also a fairly technical work that requires a little proficiency in Greek. We put Dr. Campbell on the line from his office in Sydney, Australia.