Using cognitive psychology -- Introductory notes on terminology -- Cognitive research and historical investigation -- The culture of the early Christ-movement as shared cognition -- Social identities and the self in a collectivistic culture -- Explaining the cause of behavior -- Formation of the identity in Christ in relation to outgroups -- Intragroup dynamics in Christ -- Being in Christ from the perspective of the individual group member -- Summary of the functions of the ingroup prototype -- Narrative, identity and behavior norms -- Recapitulation -- The aim and progression of the analysis of Ephesians -- The text of Ephesians in relation to a hypothetical social context -- The structure, rhetorical strategy, and purpose of the letter -- The narrative rationale of the identity in Christ -- Narratives about social categories in Ephesians -- A reconstruction of the ingroup prototype