Pauls letters to the church at Philippi and to Philemon offer moving insight into early Christianity. No letter displays Pauls fondness for a church as much as Philippians, and this passion is accompanied by a profound sense of thanksgiving for the church and its generosity, along with clarification of an authentic understanding of Jesus. Philemon is Pauls appeal on behalf of Onesimus, a slave, and argues for Christian treatment of one another.