Christianity had not lost the vociferously aniconic nature it had inherited from Judaism. In the canonical literature of the 1st century the witness is consistently to an aniconic faith. In the non-canonical literature of the 2nd century we continue to find Christians in tension with prevailing iconographic practice. Christians were charged with being atheist- a charge based on their rejection of pagan idols (such as those of Mithras) and because they had no images of their own. Mithras slaying the bull, Gregoriano Profano Museo.