“And the contention was so sharp between them, that they departed asunder one from the other: and so Barnabas took Mark, and sailed unto Cyprus;”
King James Version (KJV)
15:39 And there was a sharp contention - Literally, a paroxysm, or fit of a fever. But nothing in the text implies that the sharpness was on both sides. It is far more probable that it was not; that St. Paul, who had the right on his side, as he undoubtedly had,) maintained it with love. And Barnabas taking Mark with him, sailed away to Cyprus - Forsaking the work in which he was engaged, he went away to his own country.
Ac 15:39 The contention was so sharp. Neither would yield, so they determined to work separately. Barnabas took Mark. Barnabas, with Mark, went to visit the churches of Cyprus.