Good common ground there, friend.
Jesus asks who he is. Peter says he (Jesus) is the Christened Son of the Living God. Jesus asks him as Simon Barjona. But flesh and blood (physical) Simon doesn't see it, it is Peter (the new spiritual man) who see's and understands. The rock means "sturdy platform",of seeing with spiritual mind over physical mind. Philip explains:
Names given to the worldly are very deceptive, for they divert our thoughts from what is correct to what is incorrect. Thus one who hears the word "God" does not perceive what is correct, but perceives what is incorrect. So also with "the Father" and "the Son" and "the Holy Spirit" and "life" and "light" and "resurrection" and "the Church (Ekklesia)" and all the rest - people do not perceive what is correct but they perceive what is incorrect, unless they have come to know what is correct. The names which are heard are in the world [...] deceive. If they were in the Aeon (eternal realm), they would at no time be used as names in the world. Nor were they set among worldly things. They have an end in the Aeon.= Gospel of Philip
In study, whether you choose to arrive closer through your own Koine Greek translation, or Coptic or Aramaic, or even Latin, the Spirit of Truth will always prevail with continued seeking.
Jesus said, "Those who seek should not stop seeking until they find. When they find, they will be disturbed. When they are disturbed, they will marvel, and will reign over all. [And after they have reigned they will rest.]"-Gospel of Thomas
Because we are worldly, in the world, Truth will first appear as a disturbance to us. Remember what Paul said we were fighting. Truth is the reward gained through constant seeking, your seeking, not others.