A Syriac icon/manuscript (Detail).
Notice the sun to the right and the moon to the left, both famous in ancient Assyrian culture as "Shamash" and "Sin" in fact the term "Shamosho" for church servant comes from there. Also notice under his feet, the face of a man, a lion, an eagle and a bull. The symbol of the four gospels which when combined from the Assyrian winged bull. Also Jesus is wearing an Assyrian costume