Paul's Imprisonment and Ministry in Rome. By this time, Paul is living in Rome as a prisoner under house arrest. As Paul writes the book of Ephesians, he uses the metaphor of, "sit, walk, stand," to describe how we live life as a fully devoted follower of Jesus. In Philippians, he emphasizes living with an attitude of joy, even in times of suffering. A major theme in Colossians is how Jesus is the, "image" of God the Father. Philemon is an example of reconciliation because of the work of a mediator.