Acts 15:37-39

WNT(i) 37 Barnabas, however, was bent on taking with them John, whose other name was Mark, 38 while Paul deemed it undesirable to have as their companion one who had deserted them in Pamphylia and had not gone on with them to the work. 39 So there arose a serious disagreement between them, which resulted in their parting from one another, Barnabas taking Mark and setting sail for Cyprus.