Disagreement

In Acts 15 Paul and Barnabas have a disagreement.
We're human, disagreements happen.
Paul and Barnabas both loved Christ but disagreed about a person to take on their trip.
Interestingly, this also happened to a friend of mine who was going on a missions trip. There was a guy who some of the team felt did not have the right spirit to go and some of the team thought that taking him on the trip would be good for the guys' spiritual life. What they had to look at was the benefits for the individual versus the detriment for the group if he continued on the same path.
And everyone is not going to agree on the benfit/ detriment ratio.

"Disagreements are going to occur," says Dr. Phil. "The question is, do you go into it with a spirit of looking for resolution or do you go into it with a spirit of getting even, vengeance, control?

Paul and Barnabas decided to take different trips. As the writer of Acts (given as Luke) seems to go with Paul I guess we don't find out what happens with Barnabas. Would be interesting to know though.