Porphyry of Tyre (Πορφύριος, Porphyrios) lived from 234 to 305 AD. He was a Neoplatonic philosopher who was born in Tyre, in the Roman Empire. He wrote many works on a wide variety of topics but one was on his dislike of idolatery--the worship of an idol or a physical object as a representation of Deity. It is only the uneducated, Porphyry says, who identify the gods with the images. The images are to be taken purely as symbols, both as regards regards their material, their colour, and their form. White marble typifies the quality of light in the Gods, gold Their stainlessness, and so on. He then goes into detail about Zeus to make the point that any representation of the God is chosen by men to portray His charcteristics and attributes. His image, however, does not define Him.

Fragment 3
Now look at the wisdom of the Greeks, and examine it as follows. The authors of the Orphic hymns supposed Zeus to be the mind of the world, and that he created all things therein,containing the world in himself. Therefore in their theological systems they have handed down their opinions concerning him thus:

Zeus was the first, Zeus last, the lightning's lord,
Zeus head, Zeus centre, all things are from Zeus.
Zeus born a male, Zeus virgin undefiled;
Zeus the firm base of earth and starry heaven;
Zeus sovereign, Zeus alone first cause of all:
One power divine, great ruler of the world,
One kingly form, encircling all things here,
Fire, water, earth, and ether, night and day;
Wisdom, first parent, and delightful Love:
For in Zeus' mighty body these all lie.
His head and beauteous face the radiant heaven
Reveals and round him float in shining waves
The golden tresses of the twinkling stars.
On either side bulls' horns of gold are seen,
Sunrise and sunset, footpaths of the gods.
His eyes the Sun, the Moon's responsive light;
His mind immortal ether, sovereign truth,
Hears and considers all; nor any speech,
Nor cry, nor noise, nor ominous voice escapes
The ear of Zeus, great Kronos' mightier son:
Such his immortal head, and such his thought.
His radiant body, boundless, undisturbed
In strength of mighty limbs was formed thus:
The god's broad-spreading shoulders, breast and back
Air's wide expanse displays; on either side
Grow wings, wherewith throughout all space he flies.
Earth the all-mother, with her lofty hills,
His sacred belly forms; the swelling flood
Of hoarse resounding Ocean girds his waist.
His feet the deeply rooted ground upholds,
And dismal Tartarus, and earth's utmost bounds.
All things he hides, then from his heart again
In godlike action brings to gladsome light.

Zeus, therefore, is the whole world, animal of animals, and god of gods; but Zeus, that is, inasmuch as he is the mind from which he brings forth all things, and by his thoughts creates them. When the theologians had explained the nature of god in this manner, to make an image such as their description indicated was neither possible, nor, if any one thought of it, could he show the look of life, and intelligence, and forethought by the figure of a sphere.

But they have made the representation of Zeus in human form, because mind was that according to which he wrought, and by generative laws brought all things to completion; and he is seated, as indicating the steadfastness of his power: and his upper parts are bare, because he is manifested in the intellectual and the heavenly parts of the world; but his feet are clothed, because he is invisible in the things that lie hidden below. And he holds his sceptre in his left hand, because most close to that side of the body dwells the heart, the most commanding and intelligent organ: for the creative mind is the sovereign of the world. And in his right hand he holds forth either an eagle, because he is master of the gods who traverse the air, as the eagle is master of the birds that fly aloft - or a victory, because he is himself victorious over all things.