Who this other brother was, whether Luke, or Barnabas or Silas, or Apollos, or Mark, is not much material; it is plain, whoever he was, that he was a brother and a minister one who had a good repute for preaching the gospel.
Related Commentaries of 2 Corinthians 8:18
2 Corinthians 8:18
18 And we have sent with him the brother, whose praise is in the gospel throughout all the churches;