Acts 15:37-39

Williams(i) 37 But Barnabas persisted in wanting to take along John who was called Mark. 38 Paul, however, did not consider such a man fit to take along with them, the man who deserted them in Pamphylia and did not go on with them to the work. 39 The disagreement was so sharp that they separated, and Barnabas took Mark and sailed for Cyprus.