Paul states in 1:24-26 that he anticipates his release and that he will come to minister again in Philippi. But given some uncertainty as to when he will arrive, he focuses their attention on one purpose: "Only [this is the singular focus] conduct yourselves in a manner worthy of the gospel of Christ" (1:27a). He calls them to live worthy of the gospel. Now, the Philippians weren't newbies in the Christian faith. They engaged in the defense and confirmation of the gospel (1:7). They supported the gospel ministry (1:5). And they had done this for 10+ years! Do they really need such an elementary instruction? They did, because they lacked a crucial area of this worthy conduct: unity.

Giving context of the senders (Paul & Timothy) and recipients (Philippian Christians) of this letter, Paul begins his message to the church in Philippi with greetings and thanks for the work of God he sees in their lives.