The point was that one could then recognize members of the family by their pistis, which could be expressed as “believing in the God who raised Jesus from the dead” or confessing Jesus as Lord and believing that God raised him from the dead. Titus shared that pistis; that is why Paul and Barnabas insisted that he should not be circumcised. The Gentile believers in Antioch shared that pistis; that is why Paul confronted Peter when by his behavior he seemed to suggest otherwise. And so on.
