'Disagreement' in the Bible

Paul and Barnabas disagreed greatly and debated with them, so it was determined that Paul and Barnabas and some of the others from their group would go up to Jerusalem to the apostles and the elders [and confer with them] concerning this issue.

And it became such a sharp disagreement that they separated from one another, and Barnabas took [John] Mark with him and sailed away to Cyprus.