How does art in early Jewish and Christian art reflect or circumvent this?
Early Jewish and Christian art does not appear to portray or idolize any other gods. In fact most of the mosaics do not even show a god only the evidence of his acts. I notice that there are many images that portray Christ, Saints, and Mary which all have a place within the religion but they are never identified as gods or false idols. I do not feel that anyone of the period that had knowledge of the bible would look at a depiction of Mary and consider it a false idol. Another point that has been well discussed is that most of the art depicted people worshiping and places of worship other than a specific god.