Most important, live together in a manner worthy of Christ's gospel. Do this, whether I come and see you or I'm absent and hear about you. Do this so that you stand firm, united in one spirit and mind as you struggle together to remain faithful to the gospel.
References for Philippians 1:27
That way, you won't be afraid of anything your enemies do. Your faithfulness and courage are a sign of their coming destruction and your salvation, which is from God.
God has generously granted you the privilege, not only of believing in Christ but also of suffering for Christ's sake.
You are having the same struggle that you saw me face and now hear that I'm still facing.