From what I can see, you are claiming that Plato was an atheist and his writings teach atheism.
You are also saying that Plato uses secret language to conceal his atheism.
In support of your theory, you cite Clement of Alexandria and Ibn Sina who, apparently, believed that Plato and/or the Greeks in general, concealed secrets in their writings.
You are claiming that this proves that Plato was a covert atheist.
The first problem with this is that, when carried to its logical conclusion, your theory becomes an extraordinary conspiracy theory according to which Plato and his followers from Aristotle to the Church Fathers and the Christian and Islamic philosophers and mystics were all secret believers in atheism.
What I am saying in response to this is that anyone with even the most basic understanding of philosophy and logic, would ask two simple questions:
1. What do those authors mean by “secrets”?
2. Why should “secrets” mean “atheism”?
“Secrets” could mean a number of things, e.g., knowledge unknown to the general public, allegorical passages referring to metaphysical realities, etc.
There is no evidence to suggest that Clement or Ibn Sina were atheists, and even if they were atheists, this doesn’t prove that Plato was an atheist. It may perfectly well be that they chose to read Plato in an atheist sense. But there is zero evidence of that.
So, this takes us back to the dialogues. These are some of your arguments:
1. Socrates says “one must, so to speak, chant such things to oneself” (Phaedo 114d).
2. Plato bans the Gods from the ideal city discussed in the Republic.
1. In fact, “chanting to oneself” means that Socrates wants his friends to overcome their grief and fear of death with the help of his account of life after death. No more and no less than that.
2. As already stated, banning the poets’ and artists’ irreverent representations of the Gods does not equal banning the Gods.
As to the Good, I think the matter is very clear. The Good is a meta-principle that explains the function of other, subordinate principles as part of a harmonious whole, i.e., how they all fit together to form a functioning, ordered system.
Allan Silverman – Some Ways of Being in Plato
1. I have already explained how Plato's “Forms” play the role of “patterns” (
paradeigmata) whereby consciousness organizes itself to generate determinate cognition.
2. The Good explains how the Forms and all other things fit together to form a unified, harmonious reality.
3. The dialogue says very clearly that the Good is “superior to and beyond being” (509b), i.e., a form of Transcendent Reality that contains all things:
“The Sun, I presume you will say, not only furnishes to visibles the power of visibility but it also provides for their generation and growth and nurture though it is not itself generation.” “Of course not.” “In like manner, then, you are to say that the objects of knowledge not only receive from the presence of the Good their being known, but their very existence and essence is derived to them from it, though the Good itself is not essence but still transcends essence in dignity and surpassing power.”
http://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.01.0168%3Abook%3D6%3Asection%3D509b
Ergo, monistic idealism, not atheism.