In my opinion, the title of the thread is totally false.
The logical gap is that if, we need divine "interpretive keys" for the conquest of the content of the Bible, then all ordinary people of the time before the various apologists undertook to find them, were automatically deprived of this conquest, and the first Christians were excluded from understanding the scriptures. So this is one of the presumptions that interpretive keys should not be needed because Scripture is addressed to everyone equally and not to some people. A second presumption is that nowhere did the authors of the Scriptures, whether divine or not, claimed the necessity for later interpretation.
In the same way, Porphyry exposed the logical gap that if Jesus and faith in him is man's requirement for salvation as the Christological narrative claims, then thousands of generations of mankind who lived before Jesus were excluded from salvation without being given the choice, because they never heard about Him.
Divine interpretation also removes the perennial justification of Christians that the words of Jesus are supposedly simple and full of parables in order to be understood by simple illiterate, uneducated people, the poor, fishermen, slaves, etc. of his time, since its conquest needs interpretive keys from the spirited clergy, or the Spirit itself.
Another big logical contradiction is that apologists preferentially remember whom Jesus was addressing: Whenever the convenient, literal interpretation suit them, then the words of Jesus are so because they were addressed to uneducated fishermen, while whenever it does not suit them, the words of Jesus need interpretation, which apparently were not accessible to the uneducated masses.
The "interpretive keys" are only necessary as each reader increases his education, his knowledge and his evolution. The average uneducated person of Jesus' time needed no interpretative key tor the Scriptures, did not analyze, did not find contradictions, most likely did not even know how to read. He simply obeyed unquestioningly the reading of others. The thousands of believers who converted to Christianity centuries later, did not need any interpretive key, quite simply because they became Christians without any awareness of Christian content.
Interpretation was/is needed ONLY against the learned reader to disentangle the logical contradictions and violations of logic he finds in the reading, in order to "help" him to reconcile the acceptance of what is logically unacceptable, which, this logically unacceptable at that time created dangerous sects, i.e. it created splits, not only theological but also of power and wealth, in an edifice whose goal was the concentration of wealth and power and not its dispersion.
All the more today the interpretive keys are increasingly necessary, as the average reader has much more education, judgment, knowledge and readily available information than the readers of the time of Jesus, and therefore finds contradictions and absurdities much more striking.
In short, the respective divine interpretive keys are nothing other than the price of the evolution of the human intellect from the time of Jesus onwards, especially when the latter chose to remain invisible and not to solve every contradiction himself.
If the world remained like the fisherman of the time of Jesus, there would be no need for divine interpretation for the Scriptures.
So for example from the 20th century onwards, when slavery on the planet was eliminated, you obviously need the interpretive keys of the Spirit to "interpret" things like this: "Slaves obey your masters in the flesh with fear and terror ..."... On the contrary, 1000 years ago, you would not need any interpretation at all. Divine interpretation is therefore nothing more than a propaganda tool whose purpose is to make a convenient interpretation that will lead to acceptance, and replace the inconvenient true interpretation that would lead to rejection.