Lets call them philosophical enemies, the pharisees and the sadducees. They saw Jesus as a traitor and threat for revealing "the secrets of the kingdom of God" Hidden wisdom in the Law that was deliberately being withheld by a few elite from the rest of the population so they could lead smooth easy lives off of the suffering of the laity.
That there was hidden meaning in the law being withheld is proven by the contemporary writings of his time.
On the appointment of presbyters.
When these men have undergone, with blamelessness of conduct, a two year preparation in the fundamentals of the community, they shall be segregated as especially sacred among the formal members of the community. Any knowledge which the expositor of the Law may posses but which may have to remain arcane to the ordinary layman, HE SHALL NOT KEEP HIDDEN FROM THEM; for in their case there need be no fear that it might induce apostasy.
On religious discussion.
No one is to engage in discussion or disputation with men of ill repute; and in the company of froward men everyone is to abstain from talk about (KEEP HIDDEN) the meaning of the Law.
Dead Sea Scrolls, manual of discipline.
Thats why Jesus said, "No one lights a candle and then hides it under a bushel. They put it on the lamp stand so everyone in the room can see" And thats why some exclaimed,"Where did he get this teaching!" not because it was unknown, never heard before, but because it was supposed to be kept secret especially from froward men of ill repute like Jesus who was a "sinner" always in bad company. And they were right. Jesus was a "sinner" but only according to the most perverse superficial literal interpretation of the words used in the Law possible.
