The complexity of the Torah

Hello Rabbi Michi, thank you for the insightful words!
Is it possible to prove from the Torah itself that it is divine? From its complexity, perfection, or any other reason (like the physico-theological view of creation)? In the first stage, I ask about the written Torah and the Bible. Is it proven from them themselves that they express something divine and not ordinary things? What, then, are the reasons for thinking so?
Secondly, can it be proven from the Oral Torah itself that it is divine, or unique in one way or another? If it is unique, should we assume that it is divine? Although in the Bible there is a better reason to think that it is not particularly complex and therefore there is no evidence of divine creation, but in the Gemara and later on there is perhaps evidence of something perfect and immense that can be proven from this itself that God gave the Torah?
A third question I would like you to answer is: Why do Torah matters become more complex and deeper with each generation? Doesn't this give an indication that is the opposite of what I said before, and it is human?
Is it evident from the depth of the Torah that it is deeper and broader than all wisdom?