Consider the following questions:
On what ground does Paul exhort Philemon to act, and what is it that Paul want Philemon to do? Are there any social implications of the gospel if so what are they?
What are the events in this passage of scripture that Paul mentions and how does he tell the story.
Which events fall into different orders in their poetic sequence. What is the first event Paul mentions (poetic sequency). what is the earliest event Paul mentions. and what do these difference suggest about Paul's rhetoric.
What is the pastorial work he displays to the readers.