We should never defend Christianity by saying it is traditional. From the beginning, it has stood against the traditions of its day.
Beginning in the fifth century, Christian leaders finally began to wield enough political influence to pass laws against sexual slavery. The church fathers called it “coerced sin.” One historian notes that the most reliable index of the Christianization of an ancient society was the recognition of the injustice of sexual slavery.
Let that historical fact sink in: The most reliable index of how deeply Christianity had permeated a society was whether [the society] outlawed sexual slavery.Nancy R. Pearcey, Love Thy Body, pp. 69 – 70, 71 – 72