be a credit to the Message of Christ

Meanwhile, live in such a way that you are a credit to the Message of Christ. Let nothing in your conduct hang on whether I come or not. Your conduct must be the same whether I show up to see things for myself or hear of it from a distance. Stand united, singular in vision, contending for people's trust in the Message, the good news, not flinching or dodging in the slightest before the opposition. Your courage and unity will show them what they're up against: defeat for them, victory for you and both because of God. There's far more to this life than trusting in Christ. There's also suffering for him. And the suffering is as much a gift as the trusting.

Philippians 1