Even within the church, humility and unity don’t come easy, but even so, Paul wants to see the church at Philippi to be united in their thinking, int their love, in spirit, and in purpose. There’s a lot of heart-work involved in serving one another with Christlike love, and Paul admonishes the church to meditate on Christ’s humility as inspiration for humility. The church ought to shine like stars in the world, bringing light to the dark through blameless and pure conduct. As examples, Paul puts forth Timothy and Epaphroditus as faithful men whom the church should welcome in Christ and honor as models of righteousness.