Strabo Geography 16.2.35

[35] An Egyptian priest named Moses, who possessed a portion of the country called the Lower [Egypt] * * * *, being dissatisfied with the established institutions there, left it and came to Judaea with a large body of people who worshipped the Divinity. He declared and taught that the Egyptians and Africans entertained erroneous sentiments, in representing the Divinity under the likeness of wild beasts and cattle of the field; that the Greeks also were in error in making images of their gods after the human form. For God [said he] may be this one thing which encompasses us all, land and sea, which we call heaven, or the universe, or the nature of things. ¹ Who then of any understanding would venture to form an image of this Deity, resembling anything with which we are conversant? on the contrary, we ought not to carve any images, but to set apart some sacred ground and a shrine worthy of the Deity, and to worship Him without any similitude. ² He taught that those who made fortunate dreams were to be permitted to sleep in the temple, where they might dream both for themselves and others; that those who practised temperance and justice, and none else, might expect good, or some gift or sign from the God, from time to time.