The meaning of "Christian" differs person-to-person and culture/tradition-to-culture/tradition, as well as over time. That Christ was born to a virgin, for example, was not necessarily agreed upon by early Christians, and it's certainly not agreed upon now. That Jesus was divine may not even have been universally accepted and also has its detractors today among Christians.

Both creeds and practices do tend to identify differences between religious groups, but those differences may not be so clearly cut in practice. At the same time, various sects may define the boundaries of the religion more narrowly than others.