"For ne'er my promise shall deceive, or fail,
Or be recall'd, if with a nod confirm'd." 
But Plato, as it seems, unwillingly entered not these strange dissertations concerning the gods, for he feared those who were attached to polytheism. And whatever he thinks fit to tell of all that he had learned from Moses and the prophets concerning one God, he preferred delivering in a mystical style, so that those who desired to be worshippers of God might have an inkling of his own opinion. For being charmed with that saying of God to Moses, "I am the really existing," and accepting with a great deal of thought the brief participial expression, he understood that God desired to signify to Moses His eternity, and therefore said, "I am the really existing;" for this word "existing" expresses not one time only, but the three -- the past, the present, and the future. For when Plato says, "and which never really is," he uses the verb "is" of time indefinite. For the word "never" is not spoken, as some suppose, of the past, but of the future time. And this has been accurately understood even by profane writers. And therefore, when Plato wished, as it were, to interpret to the uninitiated what had been mystically expressed by the participle concerning the eternity of God, he employed the following language: "God indeed, as the old tradition runs, includes the beginning, and end, and middle of all things." In this sentence he plainly and obviously names the law of Moses "the old tradition," fearing, through dread of the hemlock-cup, to mention the name of Moses; for he understood that the teaching of the man was hateful to the Greeks; and he clearly enough indicates Moses by the antiquity of the tradition. And we have sufficiently proved from Diodorus and the rest of the historians, in the foregoing chapters, that the law of Moses is not only old, but even the first. For Diodorus says that he was the first of all lawgivers; the letters which belong to the Greeks, and which they employed in the writing of their histories, having not yet been discovered.
 Iliad, i. 526.