In Philippians 4 Paul gives us great advice for how to resolve conflict, find joy in all circumstances, and to find wisdom in life.
"I want to know Christ—yes, to know the power of his resurrection and participation in his sufferings, becoming like him in his death, and so, somehow, attaining to the resurrection from the dead."
In Philippians 3:1-9, Paul sees Christ as worth immeasurably more than anything else in this world. It's an incredible challenge for us, and at the same time liberating.
Whatever happens, conduct yourselves in a manner worthy of the gospel of Christ – in good times and bad, together, “working out” our salvation without grumbling – so that we can shine for Jesus.
For to me to live is Christ and to die is gain.
A key theme for Paul in his letter to the church in Philippi is koinonia, which we translate as sharing, participation, communion. Through the good news of Jesus we share in Christ, in the Holy Spirit and so also each other in the church.