Indeed, some do try to take away the
keys to knowledge.

Jesus spoke of some who where doing that in His day.

“Woe to you lawyers! For you took away the key of knowledge. You didn’t enter in yourselves, and those who were entering in, you hindered.”
Lk 11:52 WEB

The lawyers were concentrating on the regulations of the law, and the minutest details of this and that, and ignoring the more important issues of justice, mercy, and compassion. The keys to knowledge are always a central issue. Often men have reasons to subvert what is true and good and pure. These things happen in all sort of situations.

AC or DC?

Sometimes the issues are money and power. Around 1900 AD there was a terrific battle between “DC” electricity (Direct Current, the kind you get from a battery), and “AC” electricity (Alternating Current, the kind of electricity that you have in your house from the power company). AC electricity was being designed and built by electrical genius Nicolai Tesla who had developed all of the devices necessary for the generation, transmission, and use of AC. Also AC electricity was far more efficient than DC, and could be economically transmitted great distances, whereas DC could not.

But there was a problem. One of America’s biggest financiers, J. P. Morgan, had gained financial control of another genius, Thomas Edison. Edison had developed some huge DC electrical systems for powering lights and homes and factories. J. P. Morgan was invested up to his eyeballs in DC electricity, and Tesla’s new inventions could make almost all of that investment worthless. So what could be done?

Suppressing the truth about the advantages
of AC electricity.

The J. P. Morgan interests started a science war against AC electricity claiming it was too dangerous to use for everyday things. (Some call this “The Current War,” 1886-1904 prox.) Thomas Edison actually had public demonstrations of the dangers of AC electricity. He publicly electrocuted dogs and horses to show how dangerous all of this was, and some of these demonstrations were filmed and can still be seen even today. Suppressing the truth to make money.

There is also much suppression of the truth
concerning much prophecy.

But God has something to say about these things.

“For the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men, who suppress the truth in unrighteousness,”
Rom 1:18 WEB

Why do they do that? Because,

“Because they hated knowledge,
And didn’t choose the fear of Yahweh. ”
Prov 1:29 WEB

So it is a choice, and we can and do make choices, even about prophecy.

Such things are the backdrop for many
religious battles

“49 But a certain one of them, Caiaphas, being high priest that year, said to them, “You know nothing at all, 50 nor do you consider that it is advantageous for us that one man should die for the people, and that the whole nation not perish.””
Jn 11:49-50 WEB

They were manipulating religion to secure money and power, and were afraid that their setup would be destroyed by Jesus teachings. The “solution”? Have Rabbi Jesus murdered!

WEB is the World English Bible, a copyright free revision
of the original ASV American Standard Version 1901