On the latter point, it was sometimes noted that Christians gathered together under the cloak of darkness, calling one another "brother" and "sister" and greeting one another with kisses; they were said to worship their god by eating the flesh and drinking the blood of the Son of God. What was one to make of such practices? If you can imagine the worst, you won't be far off. Pagan opponents claimed that Christians engaged in ritual incest (sexual acts with brothers and sisters), infanticide (killing the Son), and cannibalism (eating his flesh and drinking his blood). These charges may seem incredible today, but in a society that respected decency and openness, they were widely ac­cepted. Christians were perceived as a nefarious lot.
Bart D. Ehrman, Misquoting Jesus: The Story Behind Who Changed the Bible and Why
christian-persecution, history, religion-christianity, textual-criticism