From my student days I found him a compelling and fascinating, though often puzzling, figure. It's a lifelong fascination now and I don't expect that to stop! His vision of God, God's faithfulness, God's purposes and so on is so much bigger and richer than almost any subsequent Christian thinker has ever managed. In addition, I have always loved ancient history, especially the history of the early Roman empire, and of course Paul fits right into that.