Philemon 1:10

This is an amazing text.  There is this fellow that Paul talks about named Onesimus.  He became Paul's son while Paul was imprisoned.  In that culture, if you could avoid it then you didn't associate with those who were in trouble with the law.  If you were in prison, you had to pray that your family would not be so fearful as to neglect you.  Here is a situation where Paul is in prison.  How did he meet Onesimus and more importantly, how did they become such good friends?  Whatever the outcome, it seems that Onesimus has joined the family of Christ (assumed from the use of "son") and that Paul has taken him under his wing.