Shared ground
Paul names three men who are with him and sends their greetings to the Colossians: Aristarchus, Mark (identified through his family tie to Barnabas), and Jesus who is also called Justus. These men are described as “of the circumcision,” a Jewish identity marker, and Paul highlights them as coworkers “to the kingdom of God.” He also adds a personal note: their presence has brought him comfort.
The passage also shows how early Christian communities stayed connected through travel and trusted relationships. The reminder about Mark assumes prior communication and an ongoing network of guidance and coordination.
Where interpretation differs
“Fellow prisoner.” Some read this as Aristarchus being literally imprisoned along with Paul. Others read it as a looser way of saying Aristarchus shares Paul’s constrained situation and risks, even if not in the same cell.
“You received instructions … welcome him.” Some think the earlier instructions existed because Mark’s reputation had been questioned, so Paul reinforces his acceptance. Others think it is simply logistical—advance notice that Mark is an approved coworker who should be received without suspicion.
“These are my only fellow workers … from the circumcision.” Many understand Paul to mean: among his Jewish coworkers, only these three are currently working with him for God’s reign. A minority reading takes it more strongly: these are the only coworkers present with Paul at all (Jewish or not), though the wording most naturally ties “only” to the “of the circumcision” group.
How broad “of the circumcision” is. Some take it mainly as ethnic Jewish background. Others think it implies ongoing Jewish covenant identity and practice as well, since the phrase often carried social and religious weight.
Why the disagreement exists
Paul’s phrases are brief and assume shared knowledge: the earlier “instructions” about Mark are not spelled out, “fellow prisoner” can be used more than one way, and the sentence about “only fellow workers” can be read with slightly different scopes depending on how tightly it is connected to “of the circumcision.”
What this passage clearly contributes
It contributes a concrete snapshot of Paul’s ministry team: it included Jewish coworkers, and Paul valued their partnership. It also shows that Paul could publicly affirm and reintegrate a coworker (Mark) through explicit guidance to “welcome” him. Finally, it portrays “the kingdom of God” as something advanced through real people, relationships, and mutual support, including emotional support (“comfort”) during hardship.