Acts 15 tells us three stories. The first story is about Paul and Barnabas getting into a fierce argument with people about the need to circumcise the Gentiles. Peter and James responded saying that God had chosen the Gentiles. The second story is the sending of Judas and Silas to Antioch to comfort the brothers and sisters of Gentiles. The third story is about Paul and Barnabas getting into a disagreement whether or not they should take Mark to Pamphylia.