When they had fulfilled their ministry. — The same noun is used as that translated “relief” in Acts 11:29. We may, perhaps, assign the vision related in Acts 22:17-21, to this visit; but see Note there.
Took with them John, whose surname was Mark. — The choice is, of course, partly explained by his relationship to Barnabas, but it shows also that he entered heartily into the work of the conversion of the Gentiles; and owing, as he did, his own conversion to Peter, it would naturally be regarded as a proof of that Apostle’s interest in it.