Christianity served as a revitalization movement that arose in response to the misery, chaos, fear, and brutality of life in the urban Greco-Roman world. . . . Christianity revitalized life in Greco-Roman cities by providing new norms and new kinds of social relationships able to cope with many urgent problems. To cities filled with the homeless and impoverished, Christianity offered charity as well as hope. To cities filled with newcomers and strangers, Christianity offered an immediate basis for attachment. To cities filled with orphans and widows, Christianity provided a new and expanded sense of family. To cities torn by violent ethnic strife, Christianity offered a new basis for social solidarity. And to cities faced with epidemics, fire, and earthquakes, Christianity offered effective nursing services. . . . For what they brought was not simply an urban movement, but a new culture capable of making life in Greco-Roman cities more tolerable." Rodney Stark,
The Rise of Christianity,Princeton University Press, 1996, page 161.
This is the summary of the following link that I felt would add more understanding to the OP... Its short and to the point... Brother Glen
What Were Early Christians Like?