Aristarchus my fellowprisoner saluteth you, and Marcus, sister's son to Barnabas, (touching whom ye received commandments: if he come unto you, receive him;)
Ver. 10. Marcus, sister's son to Barnabas] Hence Barnabas stood so stiff for him against Paul his faithful fellow traveller, Acts 15:37. See Trapp on " Act 15:37 " Natural affection sways overly much with some good men, as it did with Eli, and perhaps with Samuel, 1Sa 8:1; 1 Samuel 8:3 .
If he come unto you, receive him] St Paul had now a better opinion of him than once, when he broke with Barnabas about him. He was not of the Novatian opinion, never to think well again of those that had fallen through infirmity, albeit they repented. They are not to be liked, that say, I never liked him since, &c.