Click here to go to Acts 15
The issue of circumcision comes to a head in this chapter with the "old guard" Jews demanding the fulfillment of the Law for the Gentiles. Chances are these people were not trying to be difficult or legalistic. When you've been taught something for your entire life it's hard to break free of it. Paul, Barnabas, and the apostles and elders meet together for council of Jerusalem. This sets the example for all churches that follow.
The hard part of this chapter is Paul and Barnabas disagreement over John Mark. The passage states their disagreement was so sharp that they went their separate ways. It is believed that they did reconcile and the Mark that Paul references in 2 Timothy 4:11 is this same person.
What else jumped out for you?