This narrative-critical study of Acts proposes that Luke has deliberately arranged events so that the discussion about circumcising baptised Gentiles is postponed for as long as possible. When the issue does surface, it is raised by a delegation of second-wave Christians from the sect of the Pharisees. These factors combined give the impression that circumcision of Gentiles, a matter long settled by Luke's own day, had never been original, favourable or sanctioned by God or the apostles. By portraying the movement to circumcise Gentiles as belated, extrinsic and pernicious, Luke's representation of difference in the church resembles that of later heresiologists.