First off, time itself is a paradox. It doesn't exist.
A circle has no beginning, so there is no end. There is no future, no past.
What we're experiencing is cause and effect on as big of a scale as possible.
Also, what you're speaking of is the Akashic Records. These "records" not only exist, but are referring to by some as soul cell memory (Roths…).
This is something you can access - not easily, but still, you can do it.
Finally, there does indeed exist "secret messages" hidden within holy texts. Unfortunately, it's not, nor has it ever been, as simple as understanding some coding language. The more it got translated, the more it got watered down.
Even then, the real version of Christianity got stifled and purposefully forgotten many generations ago.