The article addresses the issue of the social implications of participating in religious groups, with particular emphasis on shaping the type of social capital among members of the mentioned religious groups or any group of a religious nature. It is not sufficiently represented in research work on modern sociology, especially the sociology of religious and modern lives, considering the context of the functioning of a modern man in their interpersonal space. To this end, qualitative research was carried out involving individual case studies. Various qualitative techniques were used: interviews, an analysis of document contents, photographs, biographies, observing participants in their social activities, trust, social ties (among members of the mentioned groups), the social roles of members, the implementation of social functions, participation in the common good, and the values and norms of social coexistence that guide the studied person. These imply the emergence of negative social capital, closing social capital, amoral familism and strong bonds in the norms developed by the group to which the analysed case belongs.